Hi Coleman. Welcome. I've been watching your thread for a while, because you laid out your questions so sequentially. I like that, however, I don't own a LE1600.
My advice will be two-fold 1. general 2. software
1. General - Some of the items you listed might be findable right here by just searching the forum using the search function and your topic. Other items are going to have to be answered by those LE motion experts. It might cut down your long list doing your own search so that people can help you with some of the more technical aspects. And I'm sure they will! :)
2. Software- even though you are going to use it more for art. I'd highly recommend a note taking program such as gobinder. I like it better than Journal, but also use that one from time to time. If your unit doesn't have the student pack and the ms experience pack and power tools from microsoft, I recommend those as well.
All the best and I hope you find the answers to your questions.
TC1000 tc1100 tc4200 and now a tc4400