I wanted to break this into tiers like I did with the QBs, but it wasn't possible. Too many different factors going on. Instead I've ranked them one at a time, and this isn't a list of how I think they'll produce statistically, but a list of the order in which I would draft them, based largely on upside and DPV (draft position value). Without further ado ...
9. Ronnie Brown, MIA
18. Knowshon Moreno, DEN
22. Jamaal Charles, KC
24. Beanie Wells, ARZ
25. Ben Tate, HOU
33. Jahvid Best, DET
35. LaDanian Tomlinson, NYJ
He'll have some huge fantasy games and some complete duds. He's a guy I'd recommend drafting very late, and then after a 150 yard, 2 TD game see what you can trade him for.
42. Thomas Jones, KC
Let's be honest: you don't want any Tampa Bay players on your fantasy team. Period.
He'll probably split carries with CJ Spiller early, but refer to the previous statement: you don't want any Bills either.
Though Jason Snelling is Michael Turner's immediate backup, Norwood is the third-down back and should catch 25-30 balls for 200 yards or so, and maybe run the ball 5 times a game.
You know what I say about drafting a Patriots running back: It's better to let Lord Voldemort babysit your Muggle child.
I bet you didn't expect to see a a guy named Montario on this list did you? The Browns picked him in the second round and they've got Joe Thomas and Alex Mack blocking, so what the heck.
Pittsburgh's #2 and 3rd down back.
51. Leon Washinton, SEA
Good handcuff for Turner.
The Chiefs rookie might split carries with Jamaal Charles and unknown rookies have this sneaky way of secretly being really good.
I think Pete Carroll will make LenDale the featured guy on the goal-line simply because of the USC roots.
Depending on when he returns from injury, Smith might supplant Best as the go-to back.
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Stay tuned for Part Three: Wide Receivers.