Affordable Autopilot

[JettPilot]

I am looking for an affordable autopilot to put in my RC camera plane :) . I just need a basic autopilot that will hook up to a standard GPS and fly the airplane to waypoints and altitude in case of radio failure or link failure... I have been looking at the PicoPilot which seems pretty good, but this site is a bit expensive. Does anyone know of a cheaper source for this autopilot ?
http://www.u-nav.com/picopilot.htm

Is this the best autopilot out there for the money or does anyone know of anything better :confused: