Well, when i dj, i prefer an oldschool look and feel. If your going ALL digital, The Pioneer CDJ's are the way to go. If not, Then DEFINETLY the Technics SLZ. As for a mixer, Either the Pioneer DJM series, or a RANE mixer. The mixer varies greatly on which DJ software you choose. From a PA Speaker standpoint, I prefer the Mackies. VERY crisp highs. And if you buy the ones that are powered, You dont have to worry about spending all the money on amps. But in the case that you do have to buy concert stacks or amps, I would recommend QSC amps, and Electrovoice Speakers. And if you pair that up with An Electrovoice DC-One Processor, the setup will be concrete. If you need a sampler, the Native Instruments Maschine is a BADASS sampler. Keep your mind open to all suggestions, as this is my personal opinion. There are endless options in the DJ World. This equipment is what I prefer because I have used it.