That's good news. My wife has been waiting for the new OS for her Mac Pro. I've been secretly lusting after some kind of Mac for some time now. Among many excuses, I've been waiting for the new OS. I can't decide what I'd get but I think I'd get a Mac Mini purely for the lower entry fee and it will run alongside my devoted homebuilt PC to which I just added another 1GB of RAM today.
I would be one of those guys who run both platforms. I love my PC despite the many issues Windows comes with but I also admire the design and seemlessness of Macs. For example, I just bought an Apple Airport Express and I'm sure it would be a snap to integrate with a Mac and Airport Extreme. Plus Apple stuff is so pretty.