Question : Setting up a two WiFi's on an office one a hotspot for paid people to sign up for the other for private use

Here is my project that I need some advice on.

Here is my network. I currently have a Linksys wireless router WRN WRT300N V1.1.
It is setup to use radius.

What I would like to do is create my own hotspot, and provide paid internet access.
I would also like to have a wireless network that is private.

What is the best way to create this. Hook up two different routers to the switch?

I would like the devices I use to have a good signel and cover a wide area
I would like to extend the distance of this network as well

Answer : Setting up a two WiFi's on an office one a hotspot for paid people to sign up for the other for private use

That version WRT300N will run DD-WRT firmware, but if you have the money to spend you might find a dedicated hotspot router to be less hassles.
e.g.
http://accessories.us.dell.com/sna/productdetail.aspx?sku=A1283138&cs=19&c=us&l=en&dgc=SS&cid=27530&lid=627063
http://www.amazon.com/WHG101-Hotspot-Gateway-54Mbps-802-11b/dp/B000P6635U

Or a 2nd Linksys so if it breaks you won't be dead in the water on both networks.