OS X is BSD based and has a much more comprehensive command line (read: typical unix shell) than Windows will ever have. Macs are pretty awesome, they're just proprietary and expensive which is exactly what I've never been looking for in a computer. OS X is an awesome OS and I would probably check it out a lot more often myself if I had any hardware suitable to be made into a Hackintosh. I've got a decent sized collection of stolen iPods, though.