My rig :
Core2Duo E6600@3.2
ASUS P5KE- WIFI
SEAGATE BARRACUDA 500GB 16MB
OCZ VINDICATOR CPU COOLER
OCZ 4GB REAPER DDR2 800 4-4-4-15
OCZ 8800GTX @612/1080(=8800ULTRA)
OCZ PROXSTREAM 1000WAT
THERMALTAKE ARMOR CASE
LG M228WA MONITOR
XP 32 + SP3
All of my OCZ products are solid as u see i have the exact RAM of yours (maybe the timings will be a little different ) i have mine @ 4-4-4-15 with 2.1 voltages and @ 712MHZ and its solid
Go for it
also i have to disagree with aevm, because u cant say Crucial RAMs OC better, Crucial is a very solid brand but other brands like Geil,OCZ,Corsair...... are all good