I have a little zoo at my house...some fish, a leopard gecko, and 2 guinea pigs (the last two being considfered "exotics")
All of the veterinarians in the area referred me to Riverwoods, as they deal more with the exotics. I have taken in my gecko once and my guinea pigs twice. They were very knowledgeable (a lot of vets deal mostly in cats and dogs only) about my pets, and they were able to be cured quickly.
They give me a discount for the second guinea pig if they are being seen together.
This is a good place to bring your pets of all types