The Bucs agreed to terms with Nick Reveiz and Mike Coughlin earlier, and now have three more commitments: LB Derrell Smith, WR Raymond Webber and WR Detron Lewis. Note that these are just agreements and not signings, for now. The contracts cannot be signed until 10 a.m. today, and there's no guarantee that these players won't sign elsewhere.
Derrell Smith was a team captain in college as well as a Big East All-Academic team selection in 2007, 2008 and 2009, graduating with a dual degree. At 6'0", 243 lbs he's slightly short, but not really undersized. However, he is slow and has had a torn left meniscus in 2009. He's been a very productive player for Syracuse, but is not a very sound linebacker.Like all undrafted free agents he's going to have to blow people away on special teams to even make the practice squad.
UPDATE: Add Mossis Madu to that list (per Jared Tokarz, h/t JoeBucsFan), an Oklahoma RB with a handful of carries over his career. I can't find anything about him other than his stats, which are pretty poor. Looks like a camp body to me.
Raymond Webber comes out of Arkansas-Pine Bluff. At 6'2" 218 lbs and with a 4.5 40-yard dash he has intriguing physical tools. That physical ability may give him a chance to make the roster, but I know very little of him otherwise. He wasn't very productive throughout his first three years at Arkansas-Pine Bluff, but in his final season he exploding for 101 catches and 1429 yards. There's very little information about him out there, but he does have physical tools and production so he could threaten to make the roster with a good training camp.
Finally, Detron Lewis is a Texas Tech receiver with some solid production. At 5'11", 211 lbs he's short and thickly built, with good overall production, although that's probably just a consequence of Texas Tech's Air Raid. He's slow, he isn't shifty or explosive and he isn't big, so I don't really see him making the roster. Another camp body.