Just got a second hand Power Mac G5 for under $200. Thought I'd post some observations in case it helps anybody who is also considering buying one... Specs: June 2004 Power Mac G5 Dual 1.8GHz G5 1GB RAM 1TB 7,200 rpm hard disk SuperDrive ATI Radeon 9600 XT with 128MB Airport Extreme Mac OS X 10.5.8 ******************************** OBSERVATIONS: -No reliability problems after a week, save one - the red light in the optical audio out port is stuck on and doesn't seem to work -Runs Leopard fine. At least as responsive as my Core Duo iMac for general tasks. -Much slower at CPU intensive tasks than my Core Duo iMac, for example, at video encoding. -Outputs to my 23" display at 2048x1152 resolution fine over single link DVI-D. -All three USB ports are USB 2.0 -Airport Extreme requires an external antenna. -1GB of RAM is enough for very basic tasks. More is needed for anything else though. -Plays 4.5mbit/second 720p H264 video fine (sometimes Quicktime may lag a bit, but VLC is fine.) -Cannot play 1080p HD video (it seems.) -Much quieter than a Digital Audio G4 model. -The Radeon 9600 XT is OK for older games (UT2004) at medium/lower quality, if you want to play anything released after 2004 at a higher resolution and quality, get something much more powerful. The Radeon X1600 in my iMac is vastly superior.