The more fractured GOP primary the better, in my opinion.
My guess is that Price will run against Chambliss in the primary and Handel will run for his House seat. I have also read that Broun is considering a run, but I really hope he doesn't, because that could easily lead to either him or Chambliss winning the primary. It's really too bad that Jim Marshall didn't run in 2008, he might've won that year, given how well Martin (a much weaker candidate) did in the November election.
Marshall was my Rep. until Austin Scott (terrible man) beat him. He would have been a fairly good candidate, and nearly any high-profile Democrat probably would have been able to take down Saxby in '08 - even King Roy himself.