It is a lot to take in, but the planning is so much fun. I recommend the Unofficial Guide to DisneyWorld....I found lots of information there!
I agree - if you're a total "newbie," I think starting with a good guidebook is a great place to begin. I love the
Unofficial Guide - it has tons of great information. Be sure to read up on how to use
Fast Pass - it's a great time-saver!
Once you have the basics from your guidebook, then I'd recommend using this chat board to ask specific questions (things like: "What's your favorite counter-service restaurant at Magic Kingdom"). Also, you can troll these boards for "favorite tips" threads.
Regarding where to stay . . . I would definitely recommend staying at one of the official WDW hotels. I like
Port Orleans Riverside (POR) the best - it's considered a "moderate" resort, price-wise, has nice rooms, and a great counter-service dining hall.
And my other advice is to pick some restaurants and
make some dining reservations (ADRs) well ahead of time (up to 6 months in advance). That's something that newbies don't know about -- that you need to make your reservations so far in advance. If you wait too long, you might not be able to get in to too many restaurants.
Finally, I'd recommend
getting to the parks at "rope drop" (get there at least 15 to 20 minutes before opening, to stand in line and enter as soon as the gates are opened). You can get so much done early in the morning -- to many visitors don't want to get up early on their vacations, it's the best way to maximize your time and get tons of things done before the parks get crowded.
Try not to stress too much - as long as you have a good grasp of the basics before you go, you'll have a great time!