I have for sale a Hagtech HagUSB. This converts USB to SPDIF so you can use your computer as an audio source with a SPDIF dac. I ordered this from Jim as a 1/2 kit and built it myself. I never bothered to put it in a box, instead having it sit on a small wood block. What you get is a fully stuffed and operational PC board.
It works fine, and was a great bridge between computer and DAC. I am using a USB dac now, though, and I have no need for the HagUSB. It also has a 1/8" line level output, so it can be used as a basic standalone DAC or even to drive a pair of headphones.
I can send photos upon request, but there isn't really much to see.
This is Jim's site for this item:
http://www.hagtech.com/hagusb.htmlFirst $65 takes it, and this price includes paypal fees and shipping in the USA.