I bought this and have used it once to test it, so it's still in box and basically mint condition.
I'm asking £50 for it. Ideal for laptops, has XLR and jack inputs, good for recording guitar/vocals etc, home studio stuff.
email me at : joss.ingram@googlemail.com if you're interested.
here is some more info off the web :
If you make music with GarageBand or other software recording programs, Fast Track USB is the easiest way to record your guitar with professional results. Just connect Fast Track USB to the USB port of your computer and you're ready to rock. Fast Track USB has an input for instruments like guitar, bass and keyboards, plus a microphone input for recording vocals or other acoustic sounds. The included GT Player Express software gives you killer effects and virtual stomp boxes so you don't need any other gear to sound great. GT Player Express also plays standard audio files like AAC, MP3 and WAV that let you learn and jam along with your favourite music at variable speeds. Fast Track USB is the easy and professional way to add guitar, vocals, and more to your computer music experience.