Adorama via eBay offers the Canon EF 24-105mm f/4L IS USM Autofocus Lens, model no. 0344B002, for $829 with free shipping. That's a buck under our mention from two days ago and the lowest total price we could find now by $30. It's compatible with any Canon EOS body and features full-time manual focus, image stabilization, circular aperture design, and more.