New build. everything compatible? missing anything?

[jasonb55]

Radeon 4870
-XFX Radeon HD 4870 750MHZ 1GB 3.6GHZ GDDR5 PCI-E 2XDVI HDCP Video Card

Processor and Motherboard
-AMD Phenom II X3 720 Black Edition Triple Core Processor AM3 2.8GHZ 7.5MB Cache 95W 45NM Retail Box
-Gigabyte GA-MA770-UD3

640GB hard drive
-Western Digital Caviar Black 640GB 7200RPM 32MB Dual Proc 3.5IN SATA Hard Drive OEM 5YR Mfg Warranty

Antec Sonata 3 w/ 500W power supply

4 GB DDR2-1066
-Corsair XMS2 TWIN2X4096-8500C5 4GB 2X2GB PC2-8500 DDR2-1066 CL5-5-5-15 240PIN Memory Kit

This will be used for moderate gaming mostly on my 1280x1024 monitor and a bit on my 1080P TV. I will also be using it to watch movies, and internet browsing. I'm holding off on buying Windows 7 to keep the cost down. I will be using Windows 7 RC until it is killed off.

Basically I would just like to know if there are any incompatibilities in the parts or if there is any way to get the price down with little to no performance loss.

Thanks in advance.

 

[oynaz]

The PSU is a bit more powerful than necessary. I am not sure you can save much on a smaller one, though.

You have no optical drive. Do you want to reuse one?