Find Pontiac Dealers in Blue, Arizona

I have about 48 Hours to decide on purchasing a Cosmos Purple, 04 GTO, 6spd, for about $28K out the door. That's with GMS, GMAC Bonus Rebate $3,500, Military Bonus Rebate $500K and 2.9% @ 60 months. I really like the color base on photos in this forum(I am stationed overseas). I will be home next month for the holidays and really wanted to make the purchase at that time, however, but this is the last Cosmos Purple in AZ and the only other color I like is the Barbarous Blue only because it will be discontinued. I think if I wait these colors will not be available next month. Now saying that I think I can be happy with the Midnight Blue. The question is do I gamble and hope that similar incentives will be available around this time next year? My gut feeling is GM will offer either a lower rebate or similar interest rates next year, but not both. I am guessing that I will end up paying an estimated $32K out-the-door for a 2005 GTO, which will make my monthly payments significantly higher. Thanks in advance for your great comments.