I'd be interested in attending (download and take) an ATP on ADT basics. I took a course a couple years ago on ADT from Avatech but it didn't stick. The instructor didn't cover the Project Navigator, either, which was just coming out at that time. I use ADT maybe a few days every couple weeks, and it gets really frustrating not knowing how to fix things that go wrong, and no having anyone nearby familar with it. I'd have to phone someone from the local user group. Maybe a basics tutorial would do me some good.
As for textbooks, I've got Paul Aubin's Mastering ADT book, but just don't seem to have the attention span to continue. Hopefully the forums for an ATP would keep me moving.