With wgoodf's questions answered, I think we can safely discuss superpantoufle's Macminitosh. I would actually disassemble the Mac mini and find a way to properly mount the logicboard, hard drive and optical drive inside the SE case in such a way that cooling will no longer be a problem. The Mac mini's case has very little ventilation to start with, and with all the components close together, it certainly doesn't aid airflow. If you did that, you might find cooling becomes less of a problem. You could also get a Molex extension to power an additional fan.