This is a TigerDirect kit that I had to put together - cost me $131 shipped. Super deal and the computer runs great. Purchased back on 10/2008 and still going strong.

I just need more memory and a larger hard drive, since the hard drive was transferred from my old pc.

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PROCESSOR
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AMD Sempron 3300+ 2Ghz Socket 754 CPU
MPN: SDA3300BOBOX
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MOTHERBOARD
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ECS GF6100-M754 Motherboard - v1.0, NVIDIA GeForce 6100, Socket 754,
MicroATX, Audio, Video, PCI Express, 10/100 Ethernet LAN, USB 2.0,
Serial ATA, RAID
MPN: GF6100-M754

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CASE
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Power Up Black ATX Mid-Tower Case with 450-Watt Power Supply
MPN: TC3J-4030 P
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MEMORY
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Corsair Value Select 1024MB PC3200 DDR 400MHz Memory

Upgrade: 1gb for $35:
http://www.amazon.com/Corsair-VS1GB400C3-PC-3200-184-pin-Desktop/dp/B0006ITZF2
http://www.microcenter.com/single_product_results.phtml?product_id=0240016
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1170139&CatId=1600

Upgrade: 2gb for $80:
http://www.microcenter.com/single_product_results.phtml?product_id=0239617