I purchased the EOS 7D after exhaustive research. I read every website and article I could find on digital SLR cameras. I narrowed the field down to the 7D and 5D. I looked at feature comparisons and since my work doesn't require a full frame sensor camera, the 7D won out. Even with the full frame sensor, the 5D doesn't have all of the features of the 7D. Learning to use the camera has been a blast. My wife and I have used Canon still and video cameras for years for work and travel, and once you learn the basic logic, shooting is easy (like computer OS's, each manufacturer has their own logic). The image quality is excellent. I shot some photos at a family function just after getting the camera. People complemented me on the photo quality and by the end, everyone wanted copies. Low light shooting is magnificent and it is one of the best cameras I have used in lower light. I have been using the battery grip with two batteries and have yet to run out of power during a full day of shooting. Make sure to get the biggest UDMA CF card you can find, you will be glad you did, especially if you shoot RAW and JPEG simultaneously. Overall, I highly recommend this camera. If you do not have to have a full frame sensor, then this is THE camera for you. It is truly the best hardware purchase I have ever made.