Pushed things a little further tonight. Pushed the core to 920mhz, vmem to 1026mhz, and CPU to 3.6Ghz (ram@1440mhz).
P6682 - http://3dmark.com/3dm11/321167
A nice improvement! I think if I really pushed hard (4Ghz CPU, 1600mhz ram, 950mhz core, 1040mhz vmem) I could maybe tag 7K. Definately not bad for a socket 1156 rig with a single GPU, all air cooled.