I've heard a few remixes before, and knew about OC remix inbefore I saw the TF2 server
The serious monkey buissiness remix of Donkey Kong Country music is just superb, I really love that one!
http://www.youtube.com/watch?v=LiXLRjclk1s
It's probably one of my favorite songs from the game, and it reeks of childhood for me. I currently have it as my ringtone ^^ It's such an underappreciated song =)