Being a compulsive planner, I read at least 15 Disney guides for our last trip thanks to Interlibrary loan. (The Dummies and Idiot's guides are the same word for word in lots of places BTW)
I love Tourguidemike.com...his info is great and he updates it all the time. Between Tourguidemike.com, this board, the mouseforless list, and allearsnet.com...that's all I need.
WDW changes so often that by the time you buy a guide, some of the info is outdated. We went the week before Memorial Day last year and by using Tourguide Mike's plans our longest wait anywhere was Dumbo...15 mins. He also tells you best parks for each morning and each evening; best rides for each park to ride in morning, afternnoon, evening or anytime; and the best places to sit and watch parades/shows/rides to get the best experience.
We went to Spectro on a Sat (something he says not to do). People were already lining up on Main Street and the parade wasn't for two more hours. We went and rode stuff from the "Ride Anytime" list and went to the spot he suggested for the parade 30 mins before time. No one in front of us...no one behind us. It was great.
I've also set up reminders for PS times and extra stuff and I get e-mails from Tourguidemike's service so i don't forget anything.
I've got the 2004 Passporter that just came out in January (which I also like...as a planner and reference). Even though it just came out, I've already had to download update pages becaue WDW changes so often.
JMHO,