Adorama just began taking preorders for the new Canon cameras and lenses:
Canon EOS Rebel T3i / 600D Digital SLR Camera
Canon EOS Rebel T3 / 1100D Digital SLR Camera
Canon EF 500mm f/4.0 L IS II USM Lens
Canon EF 600mm f/4.0 L IS II USM Lens
Note that a soon-to-be-fixed glitch is preventing these new items from being ordered without an in-stock item included in the order. If you are having problems, add a GTCL3612 (Giottos Anti-Static Microfiber Cleaning Cloth) to the order - and have it removed by customer service later if you don't want it.