I've decided I'd like to upgrade my current video card (Evga 8800GT SuperClocked) to an ATi 4890 (the stock XFX one). I'm running an Intel E8500 at stock clock on an ASUS P5Q Pro mobo with 4GB of DDR2-1000 RAM. I game almost all the time at 1680x1050 (unless it's something older that doesn't support that high of a res at which point I try to play in windowed mode). I also have a Corsair TX750 PSU so there's plenty of power for it. I plan on doing a full format/reinstall of XP as I'm also going to get a WD 300GB Velociraptor as well. I guess my main question is should I OC my processor any and if so by how much? I know a 4890 would be a bit of an overkill but prices are so sweet right now it's hard to resist. Any input would be very appreciated and if I missed any details feel free to ask. Thanks 