No info on the Entertainment book. I do know that you can buy it through MyPoints and get $5 off with free shipping. Which hotel are you booked at? I am sure you've checked the Hilton board for all the various opinions on the variety of Hilton brands near WDW. Are you just doing Disney this trip? If you are flying to Orlando be advised that the cab fare to WDW is very expensive and it's probably cheaper to rent a car for the week than paying round trip cab fare!
We have eaten at the Nine Dragons in Epcot and it is top notch Chinese food. Also would recomend 50's Prime Time Cafe. Very entertaining and good food. Try the Sci-Fi Dine-In Theater Restaurant. Both in MGM. We found all the food to be of good quality in all the places.
I would definitly go to Cirque. It is fantastic! You might be able to get a bit off through AAA. I know the Florida offices sell them.
Downtown Disney is really just shops and restaurants. But it is a lot of fun to walk through especially at night. The House of Blues has good food and is right beside the Cirque show.
If you have ant specific questions I will try to help.
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