VPN on on one wireless not on another, possible?

This will probably seem a strange request to most, but makes perfect sense to me.

Would it be possible to configure the router such that, one wireless network is setup and it acts like the default state of the network, connected to DNS servers etc. that the Cable provider users.

Then have another wireless network setup, but the second network is connected via VPN to a VPN server? In my case I often use a UK VPN, currently I do this using two routers.

So for example, I could connect my laptop to one wireless network and appear like I am in the US, then if I want to be in the UK, switch to the other wireless network that goes through the VPN.

Wondering if this is possible.

Many thanks.

Carl