K.B.
Check out Unofficial Guide to Disney World - they come out with a new edition every year and it's a great resource. You might find it to be overkill if you are just going to MK for 1 day (it gets very detailed about all the parks, the water parks, accomodations, etc.) but it does have "touring plans" that you can follow to try to hit as many attractions as possible while minimizing waiting in line. Fast Pass is essential for this. Also, you should get there right when the park opens and be ready to walk in and hit rides as soon as the rope drops - it is not nearly as crowded then as it is later by 11 when more people start showing up. By doing that, we didn't have to wait in line very long for some the most popular rides. Take advantage of their Photopass service too - there are park photographers staged around various locations who can take your picture all together as a family and then save the pictures onto a card that you carry around. Then you just hand your card to another photographer to get more group pics done. After that you can order a CD with all the pics on it. Good luck and have fun!