
@Mark > If you are looking for a great, all in one, compact system packed with all the latest technology then it'd have to be the XDJ-Aero. However, if you want three independent units (and therefore, better backup-ability) along with being able to use CDs etc then it'd have to be the CDJs. If I were you, I would try out all the kit at your local retailer (if possible) and see which one you have a better feel for.
Personally, I think you're probably going to want the newer technology that the XDJ incorporates.