Jeff,
To begin, great list of reservations! You have started off with several of my favorites, and one I get to try for the first time this September (Sanaa)! If you are looking for more dining suggestions, feel free to ask!
If you call the advanced dining reservations line (407-939-3463) they can tell you all your confirmation numbers over the phone, as well as the corresponding locations and times. There is no way to get them online that I am aware of.
As to whether or not the
Disney Dining Plans are a good value, I would say yes. I have rarely encountered a situation where it did not pay for itself. The bigger question is
WHICH plan is right for you. What I recommend you do is review the PDFs of the main plan versions (Quick, Standard, and Deluxe) and see which best matches your dining plans. I think you will find that it saves you money, as well as headaches!
Have a magical (and delicious) vacation!