So we had a great time in Glacier National Park. Hiked up to Avalanche lake, camped, biked over Logan Pass (up Going-To-The-Sun Highway), and coasted down the other side. Great stuff, and not too hard, given our two short days through the Park.
My only complaint is their non-bike friendliness at the Park. It cost us $24 to get in (one Dollar less than an SUV full of people), $10 to camp (the same price as an RV), and the highway over the pass is closed to bikes from 11 AM to 4 PM (though this is somewhat understandable for safety reasons).
And we ate at an amazing restaurant (Johnson's Family Restaurant) in St. Mary's on the East entrance to the park.