I just got a new computer. She's my new love and had no idea whether it would run Crysis even on high. But here's my rig.
AMD Phenom II X4 965 Black Edition 3.4Ghz CPU
4x2GB OCZ Gold 2000Mhz DDR3 RAM
AMD Radeon 6950 2GB GPU
Asus GTD/ProUSB3 Motherboard
HAF 922 with Side Window
24" LED Benq GL2440 1080P Monitor
Oh and a HDMI cable running from my graphics card to my monitor.

Extreme Graphics are a breeze.
