Well, I called the account specialist at 1-888-773-2162 and added the $9.99 Essentials package today. My Sky Angel channels were turned off, but they go dark in a couple of days anyway.
Besides the channels listed in the Essentials Package thread, I get CNN, Headline News, Cartoon Network, Discovery, and C-Span2. I also get TBN, Angel One, KTV, Angel Two, 3ABN, and EWTN. For $9.99, I am very happy! Not sure if all of these extra channels will stay (or if you will get them with your Essentials pack), but I'm going to enjoy them while I can!