Budget and good OC'ing (12 Phases to CPU):
Z68 ASUS P8Z68-V ; iGPU (no GPU required for 2D), QuickSync, SSD Caching
P67 ASUS P8P67 (REV 3.1) ; Crossfire only, GPU required
P67 ASUS P8P67 PRO (REV 3.1) ; SLI & Crossfire, GPU required
The differences between 3.0 and 3.1 are the USB chipsets, and since the 3.1 is cheaper it a better choice on a tight budget.