Yes, and I try Linux every once in awhile. But like a lot of other folks, I've been using the MS OS since around MSDOS 5 or so. You'll find a lot of us here that use Macs alongside their Windows and/or Linux boxes. We are an Apple site, so we have a few semi-fanatical Apple lovers ;D.
I'm one of those that likes OS X for my primary personal computing, but I like Windows for some things such as HTPC use.
We've got those that like the ATV, meanwhile I've got a Roku HD box being delivered tomorrow. And I may yet end up getting one of the ATVs at only $100 too.
(I do love my iPad, I must admit - except for that one change they just made.)