Lenovo IBM ThinkCentre S50 8171-31U Pentium 4 3.2Ghz, 1GB DDR, 40GB SATA HDD, CD, WinXP - Small… for $74.99
The IBM ThinkCentre S51 8171-31U Desktop Computer offers powerful computing in a convenient, space-saving design. This small form factor PC (in other words, it’s not as large as a traditional desktop computer), comes loaded with a 3.2GHz Intel Pentium 4 processor, 1GB DDR memory, and a 40GB hard drive. It runs on the Genuine Windows XP Pro operating system. The IBM ThinkCentre S51 8171-31U Desktop Computer also features a CD-Rom optical drive.