Audio Remastering Software?

Ok, so I've got a couple of .mp3 audio files which are each in the neighborhood of one hour long. They're house/trance mixes and I'm looking for a program which will allow me to split up these huge one track files into multiple tracks.

Can anyone suggest anything?

Audacity is about the only one that I know of.

Exactly what I was looking for, thanks!

nice, good topic and find.. i have about 300 mixes that are over an hour long.. one of them is ferry corsten live which is 5.5 hours lol