I picked up a PowerMac G4 733 DA several months back and it is now my file server. I have three HDDs ( the original and 2 Seagate 7200 200GB), but it was the first non-Windows desktop I have had. I have had a PowerBook, but never an Apple tower. Anyhow, there were no places to slide them in. The original has a little metal holder it is attached to on the bottom, but the others I had to just sit on the bottom of the case. That can't be good for cooling. Plus, the fan is going non-stop and the machine is pushing a lot of heat out back. What options do I have?