Hey all, new to these forums, just thought I'd post my overclock results:

E8400 / P5N-E (bios 0803) @ 4207 MHz
Ai Tuning: Manual
Sli Ready Memory: Disabled
Vcore Voltage: 1.45000V
Memory Voltage: Auto
Vcore offset Voltage: +100mv
FSB memory clocked mode: Unlinked
FSB memory ratio: Unsynced
FSB (QDR), MHz: 1870
NB PCI-E Frequency MHz: 101


System specs:
Intel E8400 Wolfdale @ 4.2GHz
Asus P5N-E SLI nForce 650i
2x 2GB Mushkin EM2-6400 DDR2-800
1x eVGA GeForce 8800GTS G80 (320/320)
Ultra X2 750w Modular PSU
Antec Nine Hundred case
Fans: 1x 120mm CPU / 5x 120mm intake / 1x 200mm exhaust
Thermalright IFX-14 CPU Cooler (without backside attachment)
Thermalright HR-03 Plus GPU Cooler
OS: Vista 64-bit

The "budget" DDR2 modules I bought wont overclock worth a damn, so I had to OC the CPU in unlinked mode and keep the RAM at stock 800MHz.

3DMark06 (1280x1024 / AA off): 11452

Core temp peaked at 72C during 4 hours of various benchmarks and playtesting, GPU peaked at 62C while the ambient temp inside the case remained at 34C consistent. These temps are pretty good for an air-cooled system with as 1200MHz OC, but I think even with my single video card I should be getting a higher 3DMark06 score.