Someone is requesting you to play at their house party but you don't want to carry around all your equipment. Then the Numark DJ2Go ($60) will be your new little buddy.  This small sized DJ controller can be set up easily with one plug of a USB, letting you DJ an entire set using real controls. DJ2Go features two platters, a crossfader, pitch and levels, Deck A, Deck B, Master, and Headphone gain controls, and it's compatible with nearly any MIDI-complaint software.  It also comes with a special edition of Virtual DJ software, designed to mate perfectly with the capabilities of the controller. So no tweaking is needed but don't worry, if you wanted to tweak the controller you can.  This little guy is good for the price and for people who are starting out as a Virtual DJ.

 If anyone has one let me know what you think of it.