Having made that leap to Apple, even with many thousand $$$ of windows software like I had, I would say do it now rather than later. The longer you wait the deeper the hole. WinTel and the constant upgrade cycle they lock you into is the major $ black hole. As I said I was a M$ user big time, but now with the G5 and OS X, wow do we have the best system on the market. Switch now, there has never been a better time.