With the empeg itself I can't really think of anything aside from having a playlist set up before-hand - which is always tough when you are trying to play music to suit the crowd.

Winamp, and several other mp3 players all support cross-fading and other DJ useful features, but those would all require a computer rather than the empeg.
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10+40 Gig Mk2a... with Tuner. S/N 040103784 || 2001 Jeep TJ, 60th Anniversary Edition