Just a quick note to let you all know that I made a Catalyst extension to interact with the reCAPTCHA service.
It's Catalyst::Controller::reCAPTCHA on cpan and comes with documentation and a simple example application. If anyone wants to add patches for Captcha::reCAPTCHA::Mailhide api, feel free :-)
By the way, watch out for testing this on your dev box - I got myself banned from reCaptcha for several hours by posting continually failing recaptchas.
