Im currently at work and bored out of my mind, so until my boss gives me something to do, I am going to contribute some things to this message bored for a bit...
If any one is sick of iTunes/Media player, and wants an open-source solution (win/linux/mac) give VLC player a shot. It's extremely light weight and plays everything from .FLAk to .mkv and everything in between.
Just some 2-cents. You're Welcome!
VLC media player - Open Source Multimedia Framework and Player
(also does video streaming, in and out)