Thanks everyone for your help!!! I went to Bobcat today and they wanted $50 for a new positive cable and in order for it to be covered under warranty they needed me to haul my tractor an hour away to them. Instead, I went to the auto parts store and bought a positive cable for $9 and some loom to protect it. I'm happy to say that the tractor started right up!!!
I'm going to order some of that corrosion protectant that k0ua recommended but I think that the lead end will be much sturdier than the cheapo potmetal end that bobcat originally provided!