I wouldn't wait till they need their shots. What if, knock on wood that something does happen to your dogs or to one of your cats before then. The only vet you have is hours away and you have an emergency on hand. Even though my vet is only an hour away I have a vet about 10 mins from my house that I use for true emergencies, they see my dogs once a year for a "check up" and that’s it. I always fax updated vaccs and info to them as soon as they get there shots though so that they have the most up to date information. I would definitely spend the 50 or so dollars it cost to take them in just to have the vet take a look at even just one of them, this way you can meet the vet. If you don't like that vet save up and take them to another vet. It's worth the time and money to have a vet that you at least know you can rely on in emergencies.

Ashley