OK guys, have a customer on a budget that wants to network 2 sites. I'm thinking that the easiest way is via a VPN but I'd like to set up a SOHO router at each end and have the routers hold up the VPN ...

In all reality, you really don't want your router to also be your DNS. It just doesn't have the horsepower to handle the traffic of even a small network without a high likelyhood of causing the router ...