Check out the awesome music you can buy:

Synesthetic is an album of SGX originals released in March 2003. It was out of print, and now it is back in the form of Synesthetic 1.1 with updated art and an extra track. More details.

Better Than Sliced Beats - The SGX Remix Album is a compilation of SGX remixes done by many different talented musicians. 71 minutes of awesomeness right here. More details.