I know this will go cold, but throw in a bigger hard drive and you have a fairly decent* machine, in my opinion.
*obviously not for gaming - but for office work, internet, movies...it's fine.
Manufacturer Dell Optiplex GX270 SFF PC
CPU Intel P4 2.8Ghz Processor
HDD 40GB ATA/100 SMART-compliant drive
Memory 1Gb DDR-RAM minimum
Optical Drive DVD-ROM / CDRW
Sound Card 16 Bit On Board Sound, with Audio (line in, line out and microphone) Ports
Graphics 32Mb Intel Extreme Graphics shared
Network Card 10/100 Ethernet Port
TFT Dell Grade A1 17 Inch TFT Monitor
Other Devices 2 x USB Front, 2 x USB Rear, Serial Port, Parallel Port, Keyboard + Mouse Ports
Operating System Windows XP Pro COA (OS pre-loaded, no restore disc supplied)