It should be a good time. Luckily we have a hotel room downtown after the game, so if it gets postponed until Sunday we don't have to make the trip up there twice, plus we can have as many pre/post-game drinks as we want.
Between the humidor and the cold, that should help the Rocks... you're right. The big thing is for the Rockies to keep it close, so the Phils have to go to their bullpen (although with the exception of Huston Street, that's not a promising venture for the Rockies Bullpen either).