Here's what I expect to happen with Houston. They just signed their RB to a contract. So they won't be taking Bush. I think David Carr is still the QB there, he just needs to get some protection from his O-line. I expect Houston to trade their #1 pick and get a whole bunch in return for it, and THAT team takes Reggie Bush. Although I think hs stock may have dropped seeing that he had a VERY hard time getting outside in the Rose Bowl. This leaves the Saints at #2. They are cutting or have cut Aaron Brooks. This leaves them looking at a QB, especially with what they have invested in Deuce McAllister. Leinart (please, anyone but him!) and Young for them. Of course Tom Benson claims he lost $45 million this year because of Katrina, and I can see Matt Whineart pulling a crybaby Manning with the Saints, and I could see them trading down as well.
This draft will be interesting. I think the Saints may get Young, simply because Houston has a good young QB and RB.
Assuming that Bush and Young both leave early, of course.