I want to build a relatively cheap gaming pc, so im considering radeon 4870 that i found for around 100 bucks and a AMD Phenom II x3 720 black edition for around 110. Im unsure about the other parts though, such as the mother board and memory. Im wondering wheter or not the gpu and cpu ive decided on are good choices, and what the remaining parts should be. Any help would be appreciated Since im a newcomer to this, i probably wont overclock anything myself.