I'm probably going to wait until the 06' drop and buy a 05' when all the rebates hit them... I should pay the Trans Am off in March of next year, which will be pretty good timing, they will be desperate to get rid of the 05s by then...
Oh and word of advise, go with GM Performance Parts... You pay a little more for them but the quality and the fact that your warranty isn't void makes it worth it in the long run...
Its not really that much more either, an example would be when my fuel pump went out on my car... None of the parts stores(Auto Zone, etc) here had one in stock for a LS1 Trans Am, special ordering was going to take like 1-2 weeks, I didn't have that kind of time... I called the Pontiac dealership that day, they received it the next morning and I only payed around $50 more...