Vicirus,
First off, a tommy point to you for starting this topic. I was thinking of doing something like this after the trade deadline. BTW, it is amazing there were no bigger deals than Fred Jones for Juan Dixon... what gives?
Second, I think a logical starting place is to look at the list of teams with star players and think about which teams will need to enter rebuilding mode, which you have done, but also think more about the current young players on those teams who will need to be extended. A couple people raised Chicago -- true, Chi will need to extend Noc, Deng, etc...
Along these lines, one team that really sticks out to me on the list is Golden State Warriors. Their salary is already at $61M next year, and that is before they even think about extending Pietrus, Biedrins, Ellis, let alone trying to keep Matt Barnes (btw, he will probably walk for nothing, when they could have easily traded him for a 2nd rounder at the deadline). Add to the fact that GSW will probably miss the playoffs again.... and I think that you will see a big shakeup with them in the offseason. My guess is they will try to package Baron with one of their bigger contracts (J-Rich or Adonal Foyle) for an expiring contract and draft pick.
In any case, I like the possibilities that the Celtics have. I could see a Theo + pick(s) + players for JO/Pau/KG, and am excited about any of those guys paired with Big Al and PP.