Cooler Master 690 II Case - Intel Core i7-970 CPU - Asus Sabertooth X58 MB - 24-gig Mushkin DDR3 Ram - Two Crucial m4 SSD - Sound Blaster X-Fi Titanium SC - Focusrite Saffire Pro 24 DSP - Asus Matrix GTX-580 VC - Samsung SyncMaster 24 inch Wide Screen Monitor - Windows 7 Pro 64-bit
I also use a custom Windows 7 basic theme I made myself, many people like it.
Black Shine Windows 7 Basic 64-bit 32-bit Theme