I've got my Apogee Duet 2 up for sale at a great price: $375.
This interface sounds amazing. You can't beat it for the money.
Please check out the audio clips on the Apogee site.
The interface and accessories are in great shape and it was used only in a smoke/pet free home studio. Comes with everything that you would get if you purchased it new. I'm only selling it because I upgraded to more Apogee goodness.
PM me or post with any questions.
Please keep in mind that I paid $595 new and you can not beat this price (check ebay). Thanks!!!