Got some holiday cash and picked up a i5-2500K + Z68XP-UD4. I was surprised at how little there is to tweak . Currently running 5.0GHz as my daily overclock, here's the screenshot:

Settings:
100.2 x 50
Normal Vcore + 0.100V (~1.45 in BIOS, 1.404V under load in CPU-Z)
VTT 1.050V
CPU PLL 1.7V
CPU Overvoltage enabled
Turbo Disabled

Specs in sig