...I also see reference to a Barry and a book he may have wrote on DCS. Any ideas where I can get that?
Available on Amazon. Search for "DCS Companion". Be sure to get the 3rd edition. Be aware that used copies are available, but often for a price that is higher than what you can get a new one for. Also, some folks may still be selling the 1st or 2nd editions - don't get one unless it's a real bargain.
There is also a DCS wifi guide available - 2nd edition is the latest. But just getting started, the DCS Companion is probably sufficient for most folks.
Unfortunately, author and DCS guru Barry Broskowitz passed away over a year ago. However, his posts regarding various DCS issues still exist on the forum.