Thanks everyone for the replies. I've read articles pro and con on both sides. My dogs have rabies/vaccines but they go in and out, my cats I've never given rabies to since they've never been outside and it's not required in my county. They have however had their vaccines since I've had them with annual boosters. I'd heard awhile ago that the leukemia vac can cause cancer around the injection site, but now I've been hearing more and more about all the vaccines doing more harm than good in indoor cats. My vet doesn't even do FIP unless specifically requested. It sounds like most here favor getting the intial series of vaccines then maybe a year of boosters, assuming they don't come into contact with other cats. I think I'm now leaning more towards skipping their vaccines next month. Thanks everyone!