Need Help w/ Blue Screen of Death

System Manufacturer/Model Number: Homebrew PC - "Alpha_Dawg"
OS: Windows 7 Ultimate 64 bit Steve Ballmer Signature Edition
CPU: Intel Core 2 Quad - Q9550 - 2.83GHz stock - OC'd to 3.6GHz
Motherboard: Gigabyte EP45-UD3P
Memory: 4GB DDR2 800MHz (PC6400) OCZ Reaper
Graphics Card: Nvidia GE Force 8800 GTS
Sound Card: Asus Xonar DX
Monitor(s) Displays: Samsung SyncMaster 2333HD
Screen Resolution: 1920 x 1080
Keyboard: MS Natural Wireless KB
Mouse: MS Wireless Mouse
PSU: PC Power & Cooling Silencer 750
Case: Gigabyte 3D Aurora
Cooling: Case is Air - 5ea. 120mm fans (mix of Arctic and Xigmatec)
Hard Drives: WD Caviar Black 750GB - 7200RPM - 32MB cache WD Caviar Green 1.5TB - 5400RPM - 64MB cache WD Caviar Green 2.0TB - 5400RPM - 64MB cache
Internet Speed: 50 mbps down/5 mbps up
Other Info: AVerMedia - AVerTVHD G2 Dual Tuner Card