As opposed to WDW, DLP doesn't require planning. Of course, you need your hotel room, but that's about it.
How many days/ nights are you going?
When you stay at at Disney-hotel, you can have your breakfast (included in the price) in a restaurant in DLP. This is something you better request up front, because there is a limited number of people that can go to the Good Morning Fantasyland breakfast. Basically, you enter the pak an hour before it opens, you can take the train or walk to Fantasyland (you should walk, because of the opportunity to take great pictures, + Main Street is so different when it's empty!) and there you have breakfast (same as in the hotel). Also, you can go on some of the Fantasyland rides before the park opens to the general public (less waiting in line). I love doing this, some people think it's a waste of time. There are NO characters at breakfast.
If you want a character breakfast, you also better book this in advance. There is an additional charge involved (don't know by heart how much, think around 17 EUR or so for adults) and you can have your breakfast at Cafe Mickey or (I think) at the Plaza Restaurant. I have done the breakfast a couple of times as Cafe Mickey, and I loved it, but it's rather pricey.
For your other meals: there is CS and TS, I'm sure someone here will bring up the link with the menus. For TS, what we usually do is going to City Hall somewhere during the day, and making a reservation for dinner. This has never been a problem. Even when you turn up just like that at a restaurant, the wait has never been too bad for us (with the exception of Rainforest Cafe)
There is the dinner show Buffalo Bill, I have never been to that one, but if you're interested, someone will help you with that.
Attraction-wise: I have never bought a guidebook for DLP. There are some great sites on the web, and in the end, the parks aren't THAT big that you really need to plan everything out in order to get some rides done. The only thing you have to keep in mind when cruising through the parks, are the schedules of some shows, like the Lion King or the car stunt show.
ETA: I like this site:
http://www.dlp.info/Guide/index.htm