I have a wireless router which I want to use to give people in a place, lets say a cafe for talkings sake access to internet.

The router its self is pants having only 2mb flash so DD-WRT is out of the question.

Is there any solution which will if set as default gateway for the wireless router allow me to do a bit of configuration and logging then proxy the traffic out.

I am not intrested in solutions which involve mollesting browsers connection settings etc, it must be a minimum fuss solution e.g connect to access point and the rest is transparent and painless for the user.

I am aware I could fire a linux box together to do it with 2 network cards but am curious if there is any freebie windows thingimibob (that works) and will do the job.