MacDJMixer Studio (http://www.macdjmixer.com) has released a “simple” version of its DJ Software, DJ Mixer Express. The US$29.95 app turns your computer into a high-end DJ system and includes a virtual mixing desk, automix function, precise beat recognition and a preview function.
DJ Mixer Express lets you automate common tasks like automatic DJ mixing, automatic BPM counter and beat mixing, or apply a high degree of control over every aspect of your mix. You can define your own sound by applying distinct effects to the song. Each of the two independent decks have functions for play/pause, pitch (speed), vinyl simulation (scratch, reverse play, brake, spin), gain, equalizer, listening only in headphones, etc.
DJ Mixer Express 2.0 runs on Mac OS X 10.3.9 or higher and Windows 7, XP and Vista. A demo is available for download.