You're one of the first mac people I've come across on this forum (or many other forums) that has said essentailly "who cares what OS you use, as long as it does what you need it to do."
Well, in the interest of full disclosure... I *was* a mac head. Now I'm pretty much immersed in Winders Server and XP. But... we do support lots of mac users around the company. I've only dabbled around with OS X. It's pretty, but I haven't owned one since system 7 (which *rocked* by the way). :-)
We also have a little linux, even some Sun and SGI gurgling along around here somewhere. And... I kid you not... I've got one remaining Alpha running VMS. Just can't get the damn thing to die, but I'm trying.