I was looking at picking up a premade comp from newegg but wasnt sure if it would be OSX compatable and was looking for some input. Its got all of what I want for not such a bad price ($1200) but I was hoping to run final cut on it as well.

Intel Core 2 Quad Q6600(2.4GHz)
8MB L2 Cache
500GB SATA
NVIDIA GeForce 9800 GTX 512MB HDCP Ready Video Card
NVIDIA nForce 750i SLI ASUS P5N-D Mainboard