Thanks again everyone for the input. Went ahead and bought a Wal-mart branded "NeverStart" (EverStart) battery today for a cool $100. Installed piece of cake. So far it seems to have fixed the problem but will update in a few days after a couple cold starts. Considering my SRT spent most of its life in more temperate climes (SC and southern NC) and the battery is 7 years old now, I wouldn't be surprised if the combination of its age and the cold weather start ups has been taking its toll.

If this solves the problem I will be happy as I don't know much about capacitors and resistors.