I will buy one later on, though.
But back to the critism: - I doubt that OS X has better driver support than Linux, for your setup maybe(good for you), but generally most stuff simply just work with Linux, I plug in my mouse, and it loads even faster than on Windows 7
- You still(to my knowledge) can't tweak a Mac. Desktop the way you can tweak KDE, GNOME and many others.
In the end my advice is load up an Ubuntu CD and be amazed that Linux is not what you described.