• Processor (CPU) (x1) : AMD Athlon 64 X2 5000+ Brisbane 2.6GHz 2 x 512KB L2 Cache Socket AM2 65W Dual-Core Black Edition Processor - Retail - $81.99
• Memory (RAM) (x2) : OCZ Platinum Revision 2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail - $87.98
• Video Card (x1) : ECS N8800GT-256MX GeForce 8800 GT 256MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail - $150.99
• Hard Drive (x1) : Western Digital Caviar SE WD5000AAJS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM - $74.99
• Optical Drive (x1) : ASUS 18X DVD±R DVD Burner with LightScribe Black PATA Model DRW-1814BL - OEM - $24.99
• Motherboard : ECS NFORCE6M-A(3.0) AM2+/AM2 NVIDIA GeForce 6100/nForce 430 ATX AMD Motherboard - Retail - $49.99
• Case : Linkworld 3230-18 c2228u Black Steel ATX Mid Tower Computer Case 430W Power Supply - Retail - $24.99
• Total Price for this build : $495.92

My comments about my computer:

I was really surprised how powerful of a PC one can build for $500