What I have started to do it list the top things for our must see and with the map listing those locations, I am getting some good ideas for our days.
Day 1 - Up early - Old Faithful area, geysers, hotel tour,..
Day 2 - Hayden Valley, Upper/Lower Falls and Grand Canyon
Day 3 - Lamar Valley, Tower Falls
Day 4 - Norris Area and Geyser/Falls going south
Day 4 - Up early - Mammoth Hot Spring Area, Roosevelt Arch
Day 5 - ?
Sounds like a good plan to start with. You might not want to plan day 5 ahead - leave it for things you missed, or want to spend more time visiting. I did notice that you left out West Thumb and Lake - perhaps you could do those on the 5th day. They are a different part of Yellowstone (and West Thumb is a thermal area with the prettiest backdrop ever!) From Fishing Bridge, they're quite close. You also mentioned fishing - perhaps you could spend some time that day for that. As others have mentioned, you will undoubtedly feel you want to go back someday, and see what you missed! A lot of folks feel that way, even after much longer visits. :)
