Model PV-T88P-YDD4 EXTREME EDITION
GPU Geforce 8800GT
Core Clock 640MHZ 65nm
Pixel Pipelines 112 super-scalar shader units
Memory Clock 1900MHz
Memory Size 512MB
Memory Interface 256 Bit Memory Bandwidth
Memory Type GDDR3
DirectX DirectX 10.0
OpenGL OpenGL 2.0
Shader Model Shader Model 4.0
Interface PCI Express 2.0
DVI 2 x Dual Link DVI HDCP
TV-Out S-Video Out / HDTV Component Out
Max Resolution 2560x1600
SLI Supported Yes
Operating Systems Supported Windows Vista/Windows XP/Windows XP 64-bit/Windows 2000/
Accessories Driver CD, Installation Guide, S-Video Cable, DVI Adapter, Company of Heroes DVD + CD
Features PCI-E 2.0, Nvidia Unified Architecture, Nvidia Quantum Effects, Lumenex Engine, GIGA Thread, DirectX 10, Shader Model 4.0
Silverstone Olympia OP650 650W ATX12V Power Supply
ATI uses Crossfire, nVidia uses SLI. If you ever intend to run 2 video cards, the setup will not be compatible with the motherboard.
Unless you specifically need features of an X38 motherboard, I think a P35 board represents better value.
I also think you need a better cooler. An OC'd C2Q will generate more heat than an OC'd C2D CPU. I think that Zalmans are overpriced for what you get. There are HSF's that work as well for less, or work better for the same money. The best HSF comparison review is on Anantech.
But they sure are pretty. I have a 9500 (bought used, eBAY) sitting as a knick-knack on a bookshelf. Attracts a lot of attention from guests.