The two subjects are unrelated for the purpose of this diacussion (I just need CL's contact info). There was a recent discussion about building a 6800 based s100 board (pretty sure all that is accurate). Well somewhat along those lines is a book I got as an interlibrary loan, 68000 Microcompuyer Systems, Fesigning and Troubleahooting by Alan Wilcox. Just picked it up today, just started perusing it. Looks damned fine. It isn't cheap, around 100$ on Amazon. But you can always borrow it like I have.