Any standard DDR2 ram will work, however there are some which will provide you better performance at a good price, lower latency is better, like CL5 1066MHz ram like this stuff. http://www.newegg.com/Product/Prod [...] 6820231166
For the power supply, dont just buy the cheapest one you find, it will cost you more in the long run. What processor and graphics card will you be running in this system? Those will determine your power needs.
Message edited by hunter315 on 10-13-2009 at 12:12:54 AM