OMG!!! Where have I been! Christa....GO FOR IT!! You may have a rough few days but soon you will wonder what you did with out the new kitty!!
Our shelter here comes with insurance for three months (I think) I would have to double check the amount of time. You can get your cat vetted at the shelter for free or they will pay so much of a vet of your choosing. That would cover anything that popped up in the beginning. When you look at your local shelter kitty pictures it should say if they have insurance or not. A lot of shelters are offering this now.

Once the kitties adjust to each other then you will have so many smiling and all out laughter times. Then there will the touching and tender moments. You won't be sorry Christa! Especially if its a younger cat. I think those tend to go easier.

I'm going to check more into this insurance and get back with you!
btw-I have three adorable babies on the porch that need a home!