I would agree about getting either a FastPass for ToT or RnRC if they're on your list of things to see right away. Then check out the show schedule. Millionaire, Indy, Beauty and the Beast, Playhouse Disney (if you've got little ones), Little Mermaid (which usually just plays every 20 minutes or so...but it does close early...be aware).
Since you don't wanna see Fantasmic, you can save the attractions - MuppetVision, Star Tours, Great Movie Ride - until later on in the evening. We tend to find that they empty out around 6:00ish or so.
If there's two Fantasmics when you go, then you're really lucky. About an hour before the first show starts, the park will empty out with everyone going to wait in line for the show. A great time to catch RnRC or ToT. However, RnRC and ToT get crowded again after that show lets out.
RyMickey