Dell SXPS 16 is surely a beast when it comes to performance. There's an interesting discussion which I managed to came across while googling.

http://forums.macrumors.com/showthread.php?t=630157

It's a debate of SXPS 16 vs MBP 15/17 inch. I, for one, plan to upgrade my notebook to MBP. Even though it's more expensive than SXPS 16, yet you get OS X and a sleek design. I had used Windows for, my entire life now and plan to try out Mac OS X. Ever since I heard Vista is released I had been disappointed. It's time for me to move on to Mac OS X.

Nice one slashie.

No driver incompatability issue while running Mac OS X? I like the spec for SXPS 16, but I'm not really sure I will like WinVista or 7 or anything that come after WinXP.