Just for fun, here is what I bought a few months back:

<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16811129158">Antec PERFORMANCE TX TX1050B Black Steel Server Computer Case 500W ATX12V v2.0 Power Supply - Retail</a>


<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16813138272">BIOSTAR TForce4SLI Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard - Retail</a>

<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16814130256">eVGA 256-P2-N516 Geforce 7800GT CO SE 256MB GDDR3 PCI Express x16 Video Card - Retail</a>

<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16819103546">AMD Athlon 64 X2 4400+ Toledo 2000MHz HT Socket 939 Dual Core Processor Model ADA4400CDBOX - Retail</a>

<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16835100007">Arctic Silver 5 Thermal Compound - OEM</a>

<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16835118119"> ZALMAN CNPS7000B-Cu LED 2 Ball Blue LED Light Cooling Fan - Retail</a>

<a href="http://www.newegg.com/Product/Product.asp?Item=N82E16820146190">mushkin SP3200 1GB 184-Pin DDR SDRAM DDR 400 (PC 3200) Unbuffered System Memory Model 991130 - Retail</a>

Total Cost: $1301