Since you signed up for Tour Guide Mike, you'll definately want to use his "Best Days" information, which is really excellent. If you have trouble finding it, go to the forums on TGM and ask. Someone will be happy to help out.
Once you have your itinerary set, you'll be able to figure out your special dining plans and make any necessary dining reservations (up to 180 days in advance). There is no good reason to delay getting your reservations - they're easy to cancel but not always easy to get. You can see menus at
www.allearsnet.com, in the dining section.
By the way - You might plan on just staying at the Animal Kingdom all day as it isn't usually open in the evenings. You can usually have everything done by the afternoon parade, and then leave. Do check out the wonderful live entertainment.
There is a great site for live entertainment information - just click on the tab for each park:
http://pages.prodigy.net/stevesoares/
Here's another great link w/ Disney related television listings for the week to help get familiarized with the parks:
http://www.bartlett-sloan.net/tv/agenda.php3?modeagenda=soon
You don't have to worry about your touring plans until your dining is done. Once the itinerary and dining are done, the rest isn't so overwhelming.
Universal Studios posts some great ticket deals on its website. Also see
www.mousesavers.com
If it fits well with your best days info, I'd like to suggest that you start with Epcot. Epcot is my favorite park but kids sometimes find it a little educational compared to the other parks. My kids are 20, 19, 14, and 9 and three of them love Epcot. The 19 year old isn't a big fan. Spend some careful time with the advanced planning to make it an enjoyable day for everyone. There really is something for almost every interest. I'll put some of my recommendations in a seperate post so that you can ignore it if it doesn't really apply.