OK I will go out on a limb and predict that he will be drafted by the Texans. There's a couple of reasons for this.
First, Alex Smith received a $20mil signing bonus last year and this year's first round pick will want a 20% increase in that (to the 24mil to 26mil range). That is ridiculous money, and way too much to tie up in a running back.
Second, the Texans are floundering as an organization and could use a home town hero to drum up support.
Finally, I really do believe Vince Young is the real deal. Bush, for as great as he is, is a running back and they can be found rather easily in this league. But franchise quarterbacks are a rare breed in this league.