I must admit that I am not a big fan of numark products but this looks trully interesting!

http://www.zzounds.com/item--NUMVIRTVINYL



Virtual Vinyl
Virtual Vinyl is Numark’s premier DJ hardware and software solution that lets you scratch, mix and sample digital audio and video files using your computer and any analog turntable or CD player. Using a traditional turntable or CD player (sold separately) and included control vinyl or CDs to control digital media content, Virtual Vinyl provides in-depth features including; master tempo, seamless looping, instant pitch matching, automatic beat-matching, BPM-aware effects, hot-cues, sampling, and more. The software includes two independent zero-latency virtual decks, seamlessly controlled by traditional 12” records that are familiar to DJs. Virtual Vinyl can play any digital audio file including; MP3, MP3Pro, WAV, AIFF, direct CD, WMA, Ogg Vorbis, MP4, iTunes (non-DRM), and more. Virtual Vinyl is compatible with music subscription services such as Yahoo! Music Unlimited, Virgin Music, Napster Music, and others. In addition to its reliable audio capabilities, Virtual Vinyl gives access to a whole new world of video mixing possibilities. Turntablists can now scratch, beat juggle and mix their favorite videos directly from their turntables. Virtual Vinyl’s video output can be displayed on any video monitor, television, projector or computer with ease. Additionally, Virtual Vinyl is equipped to play any DVD, VOB, DIVX, MPG, AVI, and Karaoke (CDG), files.

M-audio's Conectiv/Torq actually looks more intersting, and its cheaper too.