thanks for the replies:
Corsair Dominator PC10666 RAM - 4GB, (2x2GB) DDR3, 1333MHz, Dual Path, Dual Channel
just ordered this ram wanted to make sure it was good for my setup
gigabyte p55-UD3
I7-870
sapphire radeon 4870 1gb
ultra 650 watt psu
ocz vertex 2 ssd 60gb
case: HAF-X
mostly using this for photoshop and for light gaming and video/music encoding
thanks for the help! will all this work well? anything to change? any advice is greatly appreciated