Read my guide in the signature. 
And don't be afraid to explore. The one big thing Apple got right since the beginning is as long as you understand the basics (which you do if you're in IT) you can't really get yourself in trouble playing with the OS.
Manga @ Triumph
"Meanwhile In The Halls Of Titan"...Titan Network Working To Save City Of Heroes
Save Paragon City! Efforts Coordination
I've been glancing over the guides you made good stuff in there
I also have some linux knowledge so I can def brick a mac in a few minutes with some of the terminal commands like sudo rm -rf (if you don't know what it does don't try it). I'm itching to get started on it and trying it out in game.
Well I'm breaking down and getting an iMac 27" i5 as my 1st Mac. After being in IT for long enough doing nothing but supporting msft while more clients are buying Apple products it's about time I learn.
Any tips, tricks, things to keep in mind when playing after many years of playing on a Windows box? IE: Ctrl and Cmd in relation to Alt and Ctrl
Also any free app recommendations are welcome
Thanks!