"Nerve-racking, stressful, lots of anxiety," he said. "It was kind of restless too."
But if waiting seemed tough, now comes the truly hard part.
History shows that although high draft picks get the hype and big signing bonuses, there are no guarantees that they will succeed in the professional ranks.
Even first-rounders are about a 50-50 proposition to become solid players in the league, experts say. That means the seven USC players selected in the first two rounds last month -- a school record -- have their work cut out for them.
"A lot of people talk about draft day and they say once you get there, you've got it made," said offensive tackle Sam Baker, another first-round pick. "It's more important what you do afterward."
The surplus of Trojans at the top of the draft was hardly unprecedented. Consider a recent run by Miami.
The Hurricanes had four first-rounders in the 2001 draft, five in 2002, four in 2003 and six in 2004.
That group included current NFL stars such as safety Ed Reed and running back Willis McGahee of the Baltimore Ravens, Indianapolis Colts receiver Reggie Wayne, New York Giants tight end Jeremy Shockey and the late Washington Redskins defensive back Sean Taylor.
Still, this year's draft was memorable for a group of USC seniors from the school's stellar recruiting class of 2003.
Defensive tackle Sedrick Ellis started things off, selected by the New Orleans Saints with the seventh pick. The Cincinnati Bengals chose linebacker Keith Rivers at No. 9 and the Atlanta Falcons took Baker at 21. Then came Jackson.
National media praised the USC program, and Coach Pete Carroll called it "a great day to be a Trojan."
James Harris, the former Los Angeles Rams quarterback who is vice president of player personnel for the Jacksonville Jaguars, said he wasn't surprised by the demand for Trojans players.
Jacksonville drafted two of them -- linebacker Thomas Williams and tailback Chauncey Washington -- in the later rounds.
"We think a lot of the USC program and Pete Carroll," Harris said. "The way they practice and the way the develop their players."
But like others, Harris quickly added that pedigree and success in college don't always translate to the next level. Take a look at USC's recent history with the draft.
Since Carroll became coach in 2000, 17 Trojans have been selected in the first two rounds, not including the most recent draft.
Twelve of those players started for their teams for all or part of last season. Several others played significant roles as reserves, including wide receiver Steve Smith, who had several clutch receptions for the Giants in the Super Bowl XLII.
To some, those numbers might not satisfy the expectations placed upon high picks. Of the 17, only three -- quarterback Carson Palmer, safety Troy Polamalu and linebacker Lofa Tatupu -- are stars in the league.
On the downside, receiver Mike Williams and offensive lineman Jacob Rogers are considered busts. And the jury is still out on former USC stars such as Matt Leinart, Reggie Bush, Dwayne Jarrett and Winston Justice.
Players from any major-college program should have an edge because they have practiced against quality teammates and played at the highest levels of college football.
All of this gives them the benefit of the doubt on draft day.
"If you're an NFL personnel guy and your job is on the line, which it is every year, it's a heck of a lot easier to take the kid from USC," said Mike Mayock, a draft expert for the NFL Network. "You can cover your backside when you take the guard from USC as opposed to the guard from Bloomsburg University."
Mayock added, however, that "sometimes the big-school kids get too much benefit."
Last season's Pro Bowl rosters included Dallas Cowboys quarterback Tony Romo, who went to Eastern Illinois; Indianapolis free safety Antoine Bethea, from Howard; former New England Patriots defensive back Asante Samuel, from Central Florida; and Minnesota Vikings safety Darren Sharper, from William & Mary.
"You can't rule out individual players who excel from small schools," Harris said. "Work ethic, the passion for the game -- those are things that affect the transition."
And that's where players from big schools can be vulnerable. The talk about USC on draft day included murmurs of doubt.
"You can't just walk into the NFL expecting to dominate like you did in college," Mayock said. "Sometimes I think the big-school guys have a tendency to say, 'I've got my money, I'm going to be fine.' "
ProFootballTalk.com suggested that "a surprising number of busts" had made NFL teams leery.
"The concern is that too many of the players who emerge from the Trojan program love the SoCal lifestyle more than they love football," the website's Mike Florio wrote.
Jackson reacted sharply to such comments, saying: "We love the game. We're just as hungry as anyone else."
But he and his classmates know that with the draft-day clamor dying down, they have something to prove.
Baker talked about staying humble when he reports to the Falcons' training camp this summer.
"It's a whole new game," he said. "Everybody's a superstar out there, and it's definitely a huge transition."
(BEGIN TEXT OF INFOBOX)
USC players drafted in the first two rounds of the NFL draft on April 26:
Rd., Name, Pos., NFL team
1. Sedrick Ellis, DT, New Orleans
1. Keith Rivers, LB, Cincinnati
1. Sam Baker, OT, Atlanta
1. Lawrence Jackson, DE, Seattle
2. Chilo Rachal, G, San Francisco
2. Fred Davis, TE, Washington
2. Terrell Thomas, CB, N.Y. Giants
Trojans' 1-2 combo in the NFL
In Pete Carroll's first six seasons as USC coach, 17 Trojans players were selected in the first and second rounds of the NFL draft.
*--* Year Rd Player, Pos Drafted by Comment 2003 1 Carson Palmer, Cincinnati Former Pro Bowl MVP -- -- QB -- ranks among top quarterback s. 2003 1 Troy Polamalu, DB Pittsburgh Named to fourth -- -- -- -- consecutive Pro Bowl despite injuries. 2004 1 Kenechi Udeze, DL Minnesota Vikings' sack leader in '07. -- -- -- -- Will miss '08 with leukemia. 2004 2 Jacob Rogers, OL Dallas Cowboys gave up on him; -- -- -- -- now with Denver Broncos. 2004 2 Keary Colbert, WR Carolina So-so in Carolina. Denver -- -- -- -- gave him $7.2-millio n contract. 2005 1 Mike Williams, WR Detroit Tried Tennessee after flameouts -- -- -- -- in Detroit and Oakland. 2005 1 Mike Patterson, DL Philadelphia Has become a solid starter for the Eagles. 2005 2 Shaun Cody, DL Detroit Started some games early in career -- -- -- -- now a reserve. 2005 2 Lofa Tatupu, LB Seattle Has become an annual Pro Bowler -- -- -- -- at linebacker. 2006 1 Reggie Bush, RB New Orleans Promising rookie season but questions linger after '07. 2006 1 Matt Leinart, QB Arizona Returning from injury with chance -- -- -- -- to reclaim starting spot. 2006 2 Winston Justice, OL Philadelphia Has started only one game for the Eagles. 2006 2 Taitusi Lutui, OL Arizona Worked his way into starting lineup as a rookie. 2006 2 LenDale White, RB Tennessee Became a starter in '07 and rushed -- -- -- -- for 1,110 yards. 2007 2 Dwayne Jarrett, WR Carolina Caught only six passes in his rookie season. 2007 2 Steve Smith, WR N.Y. Giants Battled injuries but came up big -- -- -- -- in Giants' Super Bowl win. 2007 2 Ryan Kalil, OL Carolina Some rough spots as a rookie -- -- -- -- but expected to start in fall. *--*