Macintoshman:
I have to say that if you took 2 hours to get Ubuntu to play an MP3 then I don't know exactly what you're doing wrong. You click Applications, go to the bottom, click Add/Remove, go to 'Sound & Video,' and select any application that says 'Media Player' in the description.
Besides, I'm pretty sure Ubuntu has built-in MP3 support... Been so long since I installed that I don't remember. Debian does; Ubuntu is based on Debian, so I would assume that it does.
Take another look at Ubuntu, and this time use the handy Add/Remove Programs tool. Much more useful than the Windows version. Stick to the programs in there(which provide workable replacements for most if not all of the programs needed for home/office/video editing/etc use) and you'll be fine. True, LINUX doesn't have a standard package, but Ubuntu(again, based on Debian, which is one of the most used distributions when you count all of its children) does, and it's actually far easier to install programs on Ubuntu than on a Mac.
And as for the commands being different; 'cd' and 'dir' are exactly the same(though 'dir' isn't technically a unix command, it's there to make migrating from DOS easier. the rreal command is 'ls') 'del' is 'rm' etc
Plus, when was the last time you used Ubuntu, and what version? It has a six month release schedule, and a LOT has happened since, say, last January. Almost an unimaginable amount since two Januarys ago.
alk:
Thanks for mentioning Aurora. Hadn't seen that before. My SS5 currently has Debian 4.0 on it(and Solaris 7 for historic value) but I'm looking for something more specific to the Sun arch.