My 200 MHz Motorola StarMax 4000 MT was great. Very clean design (even if it did look like a PC), something I've always liked in a case. Also, it was pretty well upgradeable, even if the 604e processor inside wasn't. Ran both Mac OS 9.1 and Debian Sarge like a champ. I also used a PS/2 mouse with it. I had to use Mouse2B to enable the second mouse button for something else, while Sarge just recognized it natively as a PS/2 mouse.