I bought a Power Mac G4 off of craigslist for $25.00 DIRT CHEAP!!! Single 1.25ghz processor, no hard drive, no keyboard, no mouse. The guy bought it off a freind and said it wouldn't display on his monitor so he bought another graphics card for it (ATI RAGE 128 Pro). I have an iMac already and know how to work with Macs and all but when plugging it into a monitor at the guys house the monitor stayed blank, no boot up screen or anything. I'm thinking it could be just because there is no hard drive in with Mac OS but still I would expect to see the grey screen with the flashing System Folder icon. I just brought it home its 2:30 in the morning and i'm going to try adding a ATI Radeon 9250 or my 9800 in it and see if it works. When you plug it in and turn it on the Macintosh start up Chime goes off and it clearly works as you can hear all the fans and the main case one startup so I know its not blown or anything but i'm a bit puzzled on it. I'm going to work on it tomorrow and check this posting for any advice after I try out my own stuff to see if I can get it to work. If anyone has any advice though that would be very helpful =)