Based on the criteria you listed a MAC seems like the best candidate for you. I can say from experience they sound better than ANY pre-vista based machines, and it is heavenly not having to configure the ASIO driver. MACs also assert better control over the hardware because their drivers are written very well. Ultimately they sound better in my experiences, and I heard the Vista machines need a patch for the USB as well.
GO MAC, and you will never look back.
Best of luck!
GO MAC, and you will never look back.
Best of luck!

