Atomixmp3 is an MP3 mixing tool that lets you mix on a computer like you would with DJ turntables. Featuring drag-and-drop functionality, the simulated turntables feature pitch control, crossfader, playlist functionality, and visual beat representation. Atomixmp3 also features a real-time, BPM-matching algorithm, and can perform automatic beat matching in just one click. In addition, this program is completely skinnable and supports Winamp DSP plugins. Users can record to WAV files that ready to burn into CDs. For a screen shot, click here.
Note: This demo version doesn't support multi-soundcard output, and has a nag screen. The full version of this program costs $59.95.