I take every precaution! I use a Nikon D3s camera body (which won the TIPA 2010 award for the best professional camera on the market), Nikon NIKKOR ED lenses, both Nikon and Metz flashguns, Lexar and SanDisk compact flash cards, etc. I shoot with two flash cards in the camera, so each and every image I take is being stored on two separate memory devices, in case one of them should fail or corrupt an image. Back in the studio we burn the RAW files onto DVDs and back them up onto two separate Lacie hard drives, while one of my assistants also stores an archived copy of all the images at a different location. Once all the images have been edited, printed and presented, we save all of the versions (RAW, TIFF and JPEG), again on two separate hard drives, on DVD, and at two locations.