Tom Ziller has a pretty clear grasp of the problem here. Basically it's what we know already but still a good read just to keep in mind what's really going on.
http://www.sbnation.com/nba/2012/4/1...arena-nba-hook
What if the NBA allows the Maloofs to move the Kings to Anaheim or KC or Timbuktu IF they promise Sacramento (along with Seattle) an expansion team by 2014? Provided an arena is built, of course.