[wafflehammer]

try looking through this:
Newegg.com - $25 - $50, Mail In Rebate, 2GB (2 x 1GB), DDR2 800 (PC2 6400), 240-Pin DDR2 SDRAM, Desktop Memory, Memory, Computer Hardware
for ram, cost a little more but they all have mail in rebates to bring down the cost

and I really don't know about that PSU, it's normally the one thing you don't want to cheap out on :|