Hey Thomas there ain't nothing wrong with a Cormac book every now and then. The book and cd you mentioned is a spiral bound but the Miller guys? I got it too the only problem is train your ears not alot of this stuff isn't wrote down. Nedro used to do videos pretty regular my favorite was Mardi Gras in texarkana a guy in a purple suit was singing. And his version of Ossun Two Step in his shed with Marylin peeking over his shoulder is one of the best I heard. You'll be fine you gotta crawl before you can walk and walk before you can run if I can kinda do it anybody can with enough want to in them.
I'd also suggest checking out Chris Miller's videos on YouTube. He does a very nice breakdown of the Lovebridge Waltz (Website Link #1), that I found extremely helpful when I first picked up the accordion. His breakdown of the Poullard Special (Website Link #2) is also useful.