I have an almost new Tonium Pacemaker, about 1 month old. This bit of kit acts like having 2 dj decks and a mixer in an ipod sized package. Full details are available at http://www.pacemaker.net
where hopefully it will make more sense.
Also look at videos on youtube for full tutorials.
Comes fully boxed and can send via recorded/special delivery or collect in person (Wimbledon).
These 120gb models come with more accessories than the 60gb ones and are £400 new.
picture : http://yfrog.com/75screenshot20091115at123p
For special delivery add on £10 for recorded add on £7 and collect in person is from London (Wimbledon).