CNC Hot Wire Foam Cutter

Hi,

I am interested in driving a hot wire cutter for the creation
of model aircraft wings. I'm using physical templates and a
mechanical system right now, but would like to find out cost and size
of task in converting to CNC. The ability to try a new wing design
without having to build the templates certainly is appealing.
Accuracy in fabrication is another factor.

I have found some French and German websites on CNC hot wire cutters
but not much in the US. Can anyone post or email me URLs of US
websites that would provide information (and supplier information) on
this topic?

Thanks,
Tom