Switching to Mac OS X is probably the last thing I would do, considering the current abuse of system resources. If Mac OS X should ever be as light as AmigaOS, then .. well... that would be something. :-P
Personally I consider AOS (or on x86: BeOS and OS/2 - the latter one with quite a bit of ideas from AOS) to be the perfect combination of Windows and MacOS, and on top of that: Much, much smaller in regard to use of system resources.
Switching to MacOS from Windows is reasonable. Like switching from Yugo to Mercedes. Switching from AmigaOS to Mac OS X is more like switching from a Mercedes to a Yugo :lol: