ahh-jeez my 15"macbook pro santa rosa won't go past the blue screen!

[GGD]

Can you boot it from an install DVD or another hard drive? That might help determine if you are really having hardware problems, or if your system software is causing problems.

If it is the NVIDIA GPU problem, it's covered by an extended repair program, and it doesn't matter if you had AppleCare or not.

http://support.apple.com/kb/TS2377