Since there might be a quite a few new fans to the sport, I'd like to list out some of the better video highlights.

Many are on subfighter.com, so get registered to download there. Do a search of the author-subject on torrent/kazaa if I don't have a link.

Mirko Crocop
?? - YouTube - Broadcast Yourself.
Red devil hunter - link
hrvman2 -
link

Fedor
vitorbelly -
keiron -

Nogueira
sherdog - YouTube - Broadcast Yourself.

Alex
Rappy - YouTube - Broadcast Yourself.

Fedor-Mirko
Thehype - YouTube - Broadcast Yourself.
The time has come by rvr (ACDC big gun)- link

Kid Yamamoto
robertpark - YouTube - Broadcast Yourself.

General
MMAevolution - link