It's time to hang out my shingle. :-)
After lots of late nights in front of my PCB layout and schematic editor programs, I've finally got my internal Stereo SID board to a point where it is ready to sell.
Anyone who wants one, just head over to my new storefront, located at:http://digitalaudioconcepts.com/
Available fully assembled or as a parts+PCB kit; users will need to specify what machine the board will be used in, plus a few other options.
(My and Abe's home pages are still available; the links thereto have been moved to the bottom of the page)