Just saw Clarrett on his Vert.... tried about 5 times and couldn't get any higher. He looked disappointed and upset after his attempts. I think he will still get drafted but he's for sure a day two guy now. He has enough name pub to get him drafted, he's just got a tough road ahead of him to ever be a starting RB in the NFL.
Ronnin Brown looked fast when he ran. At 6'0 and 230 he's probably got the best size to speed ratio of the RB's in the draft. Add to that the best hands of the RB's and you can rest assured that he will be the #1 back taken off the board. Benson will probably run in the 4.5 range. He also has taken a ton of hits compared to Cadillac or Brown.
J.J. Arrington made himself some money as well. Electronically timed, he had the fastest time of the RB's in the mid 4.4's. Brown was second fastest.
On a side note, the Citadel kid (forget his name) weighed near 250 and ran a very fast 4.5. That dude is THICK! He looks like he can plow a lane and has a little bit of speed if he breaks into the second level. Worth a look if he's available in the late rounds.