I think I'm gonna go with Linux Mint. It looks awesome! I had a look at screenshots from the other distro's and Mint looks by far the best. After a little googling, my choice came down to OpenSuSE or Linux Mint. First I gotta get myself another HDD. Linux has it's own media player right? Can I install the K-Lite Media Package and use that instead? I see WinAMP isn't supported on Linux, so has anyone tried XMMS? What media player is used in Mint?
For a media player, you can't go wrong with Amarok - it is Winamp to the power of awesome. Just do some basic googling to learn how package management works. If you're trying to find a Linux app for something, just google for it and you will find a million alternatives.
As for a video player; why are you not using VLC? VLC takes K-Lite, punches it in the face, sticks it in a porta-potty and rolls it down a hill.
The best piece of advice I can give is DO NOT COMPARE LINUX TO WINDOWS! Do not think of it as the latest version of Windows, or think about it in Windows terms, e.g. "herp derp /usr/share/bin is like C:\Program Files! HERP!"; they are completely different things and trying to relate one to the other will just confuse you.
Do not do it.