I just picked up a 2004 Grand Prix GT off CL. It's is pretty good shape and right at 100k even miles. As always play to hopefully upgrade the crap out of it.
About me: Been tinkering with cars since my first Camaro at age 15. I've swapped a few Chevy small block motors, replaced a few transmissions, alternators, etc. I can rebuild carbs, replace bushing in alternators, etc. I'm not very experienced at the computer stuff which is ironic since I'm a computer science major.
Previous cars: 77 Camaro went through 3 different motors (305, 350, and 265<--Not joking, actually had one), 80' Camaro (305 again), 84' SHO, Vega (forgot what year), several others I've already forgotten about.
Usually when I get a new toy I immediately replace the exhaust with a cat-back performance exhaust. Unless someone knows of a reason not to on the 2004 GT, then that's probably my first plan for this car.