I like Barber - he's tough, he has great power, can break tackles, can beat players as well as run over them, has ripped off some long gainers at Minnesota and his weaknesses - hands and blocking are absolutely coachable. He's not weak in either area particularly, he just needs some better coaching. Houston I also like - I followed him some at high school and during his recruiting process. I think he has massive upside if only he could be more consistent. If it's not injuries just as he really looks good, it's fumbles. But he has a really nice size/speed/talent combo and could be the sort of back to break out in the pros. Arrington has done really well for Cal - sets up his blocks well, has very good vision, quick, has moves, but his size as a blocker, his mediocre hands and the fact that he starts off very deep in the Cal backfield and gets his acceleration before Aaron Rodgers gets the ball to him, will change in the pros. I also think when he gets hit he stays hit.
Moats is interesting - he has some size issues as well, but is quick, has nice vision, can make people miss, is strong physically despite his size, has good hands, but his problem is that he coughs the ball up way too much. Would be a nice change of pace for someone. Clarett you can't take seriously because he won't have played a down for almost three years at the start of the 2005 NFL season. And Sproles will be a 3rd down back/return man operating at a high level. If used correctly, he could be hugely dangerous and is the sort of player that Belichick would relish.