Yeah, one time we ate at the Poly, and we walked around the resort a little bit. Seeing my kids staring at the Volcano Pool, wanting to jump in and have fun was sort of painful! If your kids love slides, go to the waterparks. They are just awesome, my kids love them as much if not a tad more than the regular parks. They have something for kids of all ages at the waterparks.
All Star Music is great. My kids adore that resort. When we stayed there in Apirl, they had acitivites for the kids at the pool each afternoon, and at night they had a big screen where they showed various Disney movies. It was a pilot program some of the resorts were doing. Not sure if they still are or not. Check out the All Star Music FAQ thread to see if anyone who has stayed there recently can tell you if they are still doing that.
Some things we have done to explore resorts: Dine of course, but also we have rented surrey bikes a few times. CSR, Boardwalk, Port Orleans Riverside, Saratoga Springs, Caribbean Beach, Old Key West, Ft. Wildnerness and Wildnerness Lodge all have bike and surrey bike rentals. Its a fun way to see the resort and our kids love doing that. It also very cheap. Lots of the resorts have boat rentals as well, but that costs more.
Have a great trip!