Hello again lads, I've done a little research, mostly in the beginners area of the forum, and have come up with a small shopping list to get started with DJing. I'll stick strictly to MP3 usage, through SD or USB storage, as I haven't bought a CD for at least 5 years. As far as brands go, Pioneer looks to be really popular on ebay and through the classifieds on the forum, so that's all I've looked at so far. Pioneer CDJ1000-MK3 x 2 DJM-900NXS OR the DJM-850. Anyone used either of these and can comment on the differences? I've got a Mac and all I need now is the software, presumably. Traktor, Serato or Rekordbox. Does pioneer render any of these three useless or are they all as capable as each other? I don't know what they're called, but the box with all the preprogrammed white buttons. Will I need one? M