Following with the ableton/lsdj theme, here's an excellent article by Marc Nostromo which explains how to set up an lsdj/ableton live set by manually copying your lsdj song structure over to live (he's referencing piggytracker but it's the same idea).
It's a painstaking process in recording each chain as a clip, but the possibiliies are endless once done - i've spent this weekend doing it with a few of my newer tracks, and after some advice from covox I think my new live set is going to rock!
http://nostromo.noisepages.com/2009/08/01/getting-a-live-pt-1-mimic-lsdj-lgpt-live-mode/