For my home business I end up having both FiOS and the local cable company as my ISPs. I have some servers, but these don't need to be public facing so much as just need constant reliable internet access. While I have some technical acumen, I'm far from a network admin. Anyway, what I'd like is to have a switch or router that can detect a failure outage in one ISP and switch over to the other. Does such a thing exist on the small business side of things? Any model / manufacturer references would be welcomed.