DJM-500:
Nice mixer, also refered to als the 'old-school' mixer, features effects, assignable crossfader and some other features.
DJM-600:
New and improved version of the 500 with
DJM-3000 :
All features from the DJM-600, but now in a 19"rackmount housing. The 3000 DOES NOT have a sampler, but you can hook up 4 Turntables on the Phone inputs. The 3000 does give you 3 rhythmical ways to work with your effects.
The 600's sampler is a lot of fun, but if it costs a lot extra it might not be worth it for you...
You can read more here :
//www.djresource.eu/Topics/story/12/Pioneer_DJM-500/
//www.djresource.eu/Topics/story/13/Pioneer_DJM-600/
//www.djresource.eu/Topics/story/14/Pioneer_DJM-3000/
Poster: ImPaCtDJ
Does anyone knows if Pioneer is releasing something similar to the 600? but in different format/style? perhaps a mod?