My Setup

[Wandrille]

ok i think this setup is pretty much set besides maybe the case and power supply so any suggestions would help

Intel Pentium D 920 800MHz FSB LGA 775 Dual Core Processor (http://www.newegg.com/Product/Product.asp?Item=N82E16819116237)

Gigabyte GA-8I945GMF Micro ATX Intel Motherboard (http://www.newegg.com/Product/Product.asp?Item=N82E16813128303)

Western Digital Caviar SE16 250GB 3.5" SATA 3.0Gb/s Hard Drive (http://www.newegg.com/Product/Product.asp?Item=N82E16822144701)

ok for ram between these three

CORSAIR ValueSelect 1GB 240-Pin DDR2 SDRAM System Memory (http://www.newegg.com/Product/Product.asp?Item=N82E16820145525)

mushkin Enhanced Performance 1GB 240-Pin DDR2 SDRAM System Memory (http://www.newegg.com/Product/Product.asp?Item=N82E16820146438)

G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM System Memory (http://www.newegg.com/Product/Product.asp?Item=N82E16820231018)

RAIDMAX Mustang ATX-889WRP Red Computer Case With Side Panel Window (http://www.newegg.com/Product/Product.asp?Item=N82E16811156166)

ASPIRE X-Dreamer ATXB3KLW-BL Blue Computer Case With Side Panel Window (http://www.newegg.com/Product/Product.asp?Item=N82E16811144002)

Microsoft Windows XP Home With SP2 (http://www.newegg.com/Product/Product.asp?Item=N82E16837102059)

[madad2005]

I'd go for 2GB of the cheap corsair value select RAM. Faster RAM only offers about 2-5% performance increase, unless you are overclocking which gives more but is a bit risky.

For the power supply, there is a hardware sticky above which has a few good ones (the Antec seems good performance/price combo). I recently bought an Enermax liberty and it is silent.