I mean ok you have the cpu oc'd to 3.1ghz BUT its not the fastest processor in the world is it.
If you had a Q6600 for example you'd probably be getting around 12-13k with stock speeds
ewww 680i.... it sucks... get a 750i FTW or something
and dude a 750i FTW + q6600 would cost $400, getting a Liquid Cooler for $100 is just plain stupid, don't care about 3dmark06 scores, and just see if you can play your games (which you can easily)