I was offered a free HP P4 2.8GHz tower at work last thursday and passed.  It just needed a new HD and had 512mb ram but I would have little to no need for it. 

Why can't I get offered free macs?  :( 
Mac mini C2D 1.83GHz - 2GB RAM - 200GB 7200rpm HD
Sawtooth w/G4 1GHz - 1GB RAM - SIIG SATA w/2x1TB HD
B&W w/G4 600MHz - 1GB RAM - 2x80GB HD
Sawtooth G4 400MHz - 512MB RAM - 40GB HD
Dell Ultrasharp 2007WFP 20" Widescreen LCD
2.94TB Total Storage