My Shopping Cart for a budget gaming machine

It's not that good. First, you're getting an ancient board. Second, you're getting an overly expensive, underperforming CPU. Finally, unless you absolutely cannot wait a month or so, there is no reason to not look towards the rerelease of Sandy Bridge.

The Sandy Bridge i5-2500K is only $225, but it would easily double the performance of the X2. Given the boards aren't too expensive, there is no reason not to wait. Of course, it should also drive down the prices on AMD builds, so even if you can't afford the i5, you'd be getting a cheaper build.

If you absolutely want to build right now, I'd make some changes.

CPU: X3 450. It's actually faster than the X2, and can be unlocked and overclocked just like the X2, only if the unlocked cores aren't stable, you've still got a triple core instead of a dual core.

Mobo: ASRock 870 Extreme3 or the ASRock 770 Extreme3. A bit more expensive, but both are high quality and use current chipsets. The 870 would allow you to Crossfire too, if you want that.

PSU: I don't trust that Rosewill PSU. It's not even 80+ Certified, which is a bad sign. Instead, look at either the Antec BP550 for $50 after rebate or Antec Earthwatts 430W for $45. Both of those are very high quality and decently priced.

RAM: A horrible choice. I don't know the exact model you're looking at, but 4 GB of those sticks run around $80. Corsair's XMS3 2x2 GB 1600 mhz CAS Latency 9 sticks will only cost $40 or G.Skill's RipjawsX 2x2 GB 1600 mhz CL 7 sticks would be $65. Either way, you'd save a ton of money, and get higher quality sticks.