Marathon mp3z!
Another tidbit from Cunbelin... not Blam related, but that's par for the course so far.
Power of Seven, the person/group responsible for the Marathon 2 and Infinity theme songs, have released aforementioned themes for download in that wonderful MPEG-3 format that we all know and love. They may not top the charts, but they're something for every Marathon'ers collection, assuming you haven't ripped your own copies yet.