Finally bit the bullet and switched from my X2 4600+ to a Core2Duo..
Dropped it into the Vapochill with an Evga 680iSLI (jan 12th Bios), 2GB of A-Data Vitesta Extreme 1000+ and started freezing it.
Here's where I am so far...
3.8GHZ, 1.45Vcore, nice and stable, RAM at 1160MHZ. (5-5-5-15)...