To do a final prestarting check, pull the rip cord on the engine so you can figure out which way the drive train should spin and just follow it through to make sure the engine rotation matches forward motion.
I'm in the same boat with the temps. Its 10 degrees here with a high of 16. I'm still tempted to go out, but afraid. I spent all week preparing for this weekend. Fixing this and that, tweaking here and there. I get home from work around 8 every damn night, mess with the truck for an hour or so and now it's friggin cold out.
Figures. Guess i'll just have to download movies and watch other people have a good time.