Originally posted by: Bovinicus
Excellent looking system. If you can afford another 512MB of memory, then go for it. Otherwise, single-channel performance will be 95-100% of what dual-channel performance would be. Plus, you have more room for upgradability down the line if you go with one 512MB stick right now. I think you are making the right choice. As well, I understand going with the 256MB version of the Radeon 9800 Pro if the difference is only $30. That card will last you quite a while.