B&H Photo-Video offers the Opteka SteadyVid PRO Video Stabilizer System, model no. SV-PRO, for $149.95 with free shipping. (Opteka charges the same.) That's $449 off list and the lowest total price we could find. It reduces shake, stabilizes video on cameras and camcorders of up to 5 lbs., and features an adjustable mounting plate, gimbal, built-in sprit level, and two additional, removable weights.