"Cheap and decent motherboard with DDR3&good 775 support"
Pros
DDR3, satisfying integrated audio and graphics (though I don't use them), active phase switching, good CPU support. Nice black PCB.
Cons
No option in BIOS to change CPU voltage, not a great overclocker. No matter what FSB/CPU Multiplier I use, I can't get my CPU over 3.2 GHz. And only 2 PCI slots are not enough if you use a two slot graphics card, you have only 1 PCI left.
Summary
I can play with a E7500 + HD 6770 + 4GB DDR3 most of the games maxed out @ Full HD resolution.