Baylor and Colorado are interesting. First, let me say I have heard all along that Colorado to Pac 10 is a done deal, but if it didn't happen it could be interesting for the Big Ten. Denver is a good sized TV market and Colorado is still growing in population.
If Baylor is left behind, they would be a decent choice for the SEC.
However, both schools would be a nice option for an expanded MWC.
Boise, BYU, Utah, Colorado or Baylor, Kansas, KSU, ISU, and TCU would be a good start.
Perhaps they could pair with an Eastern division of Cincy, Louisville, Memphis, Tulsa, etc.
Another question concerns the ACC. People in the South think the SEC is going to be able to pull FSU and Miami from the ACC. That might mean the ACC would go after the Big Ten's leftovers from the Big East. UCONN, WVU, Pitt or Cuse. However, that leaves some spots. East Carolina, Louisville, Cincy, would be possible options. I hear Louisville is not crying over the demise of the Big Ten, because the travel is perceived as hurting their sports success.