use
www.newegg.com,
www.pricewatch.com or
www.tigerdirect.com
wait untill next week when AMD releases their socket AM2 Motherboards, and CPU's, u should get one of the lower end models, seeming that if you need to upgrade the system within at least the next three years, your good to go with the DDR2 and everything, i think TigerDirect has a deal sometimes on 2GB DDR2 memory for like $120. go for a 300GB hard drive which you can find at CompUSA for like $100. um..... video card..... look on the three websites listed above, i would go for nothing less than a NVidia GeForce 7300
Now, for the software, how are you going to take care of that.... Make Bill Gates ritcher than he already is by buying a XP Pro Disk for $130 (or something close to that).... or go underground
I know there was a inkjet printer on sale at target for like $20, and a mediocar 19" LCD for $120 on TigerDirect.
Look around, you never know what you can find