Amd 550, best motherboard?

I'm needing to upgrade my computer... looking at the AMD 550 as the CPU and looking for a reasonably priced mobo to match with it. Then there's DDR2 or 3?? And video card choice. I mainly do lots of Photoshop work, InDesign on a publication I own, and want to do gaming on this, though not a hardcore gamer or OC'er. Suggestions??

Been looking at the Gigabyte GA-MA790X-UD4P, or GA-MA770T, BIOSTAR TFORCE TA790GX 128M, GIGABYTE GA-MA790GP-UD4H.

Video options vary a lot, reviews etc. Been lots of years since I built a new computer. My box and power supply should be fine. got big HD's too. So it's CPU, MOBO, DDR2 or 3, and video to compliment the bunch...