(Offtopic) Because people ask...
No particular ideas on Defense other than Jack Reed.  I think you could do a lot worse than that.  Reed is a veteran with cred and a certified expert, who can work closely with Joe Biden, who is probably going to be the Defense/State guy.

Treasury is obviously going to be very important.  Bob Rubin has been talked about a lot as well as Paul Volcker.  My personal guess is going to be Timothy Geithner (President of the Federal Reserve Bank).  He's worked for Rubin, who may well end up as the Chair of the Council of Economic Advisors rather than Secretary.  Geithner is already in the middle of the bailout, day-in/day-out and that's going to be enormously important.

the_smith_e asked what Warren Buffet wanted.  I'd guess if anything a role on the CEA.  I'd guess Rubin or Volcker for Chair though.

State is a big one.  Madelaine Albright has been suggested, but she's something like 72, and I just don't think she could keep up with the pace.  I think she'll be an advisor of some sort, but someone younger will take State.  You do not want the health complexities inherent in a 72 year old derailing the delicate processes State needs to be responsible for.  A good realistic choice is Greg Craig.  Colin Powell has been suggested, as has John Kerry.  I think if we see that sort of "dream team" pick it would be in this slot, but my money is going to go on Craig or somebody like him.

At this writing, as far as I know Rep. Rahm Emanuel (D-Illinois) is a given for Chief of Staff and should be announced shortly.

No strong feelings about the other slots...