sure rogues are fun, but you really shouldn't be playing them at work!

"Windows 7 is likely more aimed at XP users and people considering the unreasonably expensive switch to Mac." it's funny how people spout this mantra. Unless you are pirating software (windows and everything else) and building the system yourself. Mac's are not more expensive for the same hardware and are generally better quality to boot. I use both pcs and macs here. both windows and OS X are very stable now days. OS X however is a nicer computing experience if you care about such things.

"Apple has their own proprietary format called AAC"

AAC was created by the mpeg organization the same ppl that came up with mp3, not Apple.