Charles Rogers probably has the best chance to be a valuable starter. I think the Texans are too horrid for Andre Johnson to compete.
Sleeper pick - I think Kevin Curtis has a chance with the Rams. Sounds like he is becoming the 3rd WR option there, and that isn't so bad for fantasy purposes. QB health and establishing a good rapport with him is key.
I don't think it's a good year for rookie RB's. It will probably take an injury for anyone to unseat Smith for the rookie RB title, but I'm not sold on him being a serviceable fantasy starter this year.
The meek ain't gonna inherit $#!%....'cuz I'll TAKE IT!