Apple Power Mac G5 Desktop M9393LL/A (Dual 1.8-GHz PowerPC G5, 512 MB RAM, 160 GB Hard Drive, DVD-R/CD-RW Drive) (Discontinued by Manufacturer) IBM PowerPC G5 Processor 1.8GHz 512MBDDR RAM 160GB Hard Drive GeForce FX 5200 Mac OS X 10.3