I can tell you now that EVGA does support overclocking.It oc's their own videocards,and their motherboards have very good oc'ing potential.Their customer support will help in the overclocking of your system as long as it's EVGA board and vid card.Although this is not a well advertised part of their warranties,they do help with memory timings and what not.I have an EVGA mainboard for S-939,and a X2 4400+.put that with crucial ballistix ddr500,and a decent PSU,and you have the makings for a good overclocker.I was able to achieve 2.9ghz with my 4400+,on water cooling.I'd say that was a decent oc on a cpu that was said to be a poor overclocker.
Dahak
M2N32-SLI DELUXE WE
X2 5600+ STOCK (2.8GHZ)
2X1GIG DDR2 800 IN DUAL CHANNEL
TOUGHPOWER 850WATT PSU
EVGA 7950 GX2 550/1400
SMILIDON RAIDMAX GAMING CASE
ACER 22IN WS LCD 1680X1050
250GIG HD/320GIG HD
G5 GAMING MOUSE
WIN XP MCE SP2