AMD Athlon 64 3000+ Venice Socket 939 Processor-120
Arctic SIlver Premium Photosynthetic Silver Thermal Compound Arctic Silver 5-8
MSI K8N NEO2 PLATINUM Socket 939 NVIDIA nForce3 Ultra ATX AMD Motherboard-119
OCZ Enhanced Latency 1GB (2 x 512MB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Unbuffered Dual Channel Kit System Memory Copper Heatspreader Model OCZ4001024ELDC-K -128
Microsoft Windows XP Home w/Service Pack 2-92 ????
Total $467 with Windows, without $375.
Recommended heatsink and fan
for a total of $423 without case/psu/windows. It should be free shipping depending on where you live and tax varies from state to state.
ASPIRE X-Dreamer II ATXB4KLW-BK Black Steel ATX Mid Tower Computer Case 420W Power Supply-56
ASPIRE ATX-AS520W BLACK ATX 520W Power Supply-55
3x Antec LED80XFAN 80mm Blue LED Light Cooling Fan-24
If you like these parts cost would be $558 leaving you enough for 2GB of ram or w/e you want. The 3000+ is at 1.8Ghz so it can be easily oc to 2.2Ghz 3500+ speeds, but if you want i think without 2gb, you can get the 3500+