Just wanted to post a link to this guy's stuff:
http://circuitsalad.com/
He started posting on DIYSB recently, and his first two schematics he posted there were an opto-FET implementation of the Orange Squeezer (sounds right even though it looks almost completely different from the original circuit) and a PT2399 with a MAX7401 switchcap filter. His schematics are very well-drawn, and they sound outstanding. I'll be building an Optorange Squeezer for sure.
That squeezer looks really interesting. I've had an H11F1 on my desk for a couple months I've been meaning to experiment with in a DOD280 circuit. Gonna breadboard this up for sure.