If you want to buy tickets, jump on it fast!
I just finished buying my brother a pair for his birthday (grr, not in Co to go with him on what would be a totalllly unselfish gift :p). They're running out fast and I had to search really hard for a good pair in the center. The top center is completely sold out on stub hub, btw, and I tried craigslist, but, predictably, the asshat sold them to a work friend as my mother was taking a break from work to hit the ATM :/
Just a heads up, if you want tickets, don't waver, jump on it!