Oh man I feeel like Noah here, I started on version 3.1 before Neil walked on the moon almost, went from there to 9, 10, 14, 97 then 2000, 2004, 2006 and now 2007. You will love the newer versions I am sure. Have to agree, throw away the digitizer, if you need to work of a hard copy graphic there are other ways of getting the info into Acad. I do a lot of conversion from paper to electronic drawings and the easiest way for me still is to scan the drawing, insert into Acad, fiddle with the scale untill its 1:1 and then basically trace it....most accurate way.
I also still use the command line for about 60% of my entries, but find that slowly I am increasing icon use. The best will be to attend a training course and take it from there.
Ciao
Kobus