My Leadtek GF3 is currently running at 245/565 with air cooling. I have ASII on the GPU heatsink and I put the fan from my stock TBird HSF on top of the GPU heatsink. I also put a slot blower underneath it. I ran ArtifactTester (0 Artifacts) and 3dMark2001 both ran fine. I don't know if this is an average overclock or if it is a pretty good one since the RAM came at 460 and i think a 105mhz increase in RAM is signifigant. By just overclocking my video card my 3DMark2k1 score went from 53xx to 65xx which is pretty damn good I think. Anyways, post what you have your GF3 at so I can compare. Thanks.

TB 1.33@1.4+SK6(Delta7k)
256M Corsair PC2400
Leadtek GeForce3
SBLive! PCI 5.1
Sony 16x/50x DVD
Sony 12x/8x/40x CDRW
Lian-Li PC60+340w P.S.
Altec Lansing ACS48
CTX PL9 19" monitor