Did the same thing at a similar time. Played with Linux from 1999 till 2002 then made the switch until I got a Mac mini in 2005, used Linux and OS X until 2006 when I got a Yonah MacBook and then basically used OS X almost exclusively on the desktop.
(I still have Linux servers and a Windows box as a hybrid gaming box / htpc / NAS but that should be replaced with an Apple TV, Drobo FS, and Xbox 360 or something)
(I still have Linux servers and a Windows box as a hybrid gaming box / htpc / NAS but that should be replaced with an Apple TV, Drobo FS, and Xbox 360 or something)