Live View on my Canon 450D has been the biggest dissapointment of the camera, which is otherwise great. My old compact Ixus 400 was designed to operate in Live View all the time and was able to auto focus and do everything very well. Perhaps I haven't yet explored the 450D enough but so far I haven't figured out how to Autofocus or how to identify focus points in Live View. Manual Focus is of course possible, but extremely difficult for me as there are no focusing aids, or cross hairs or anything. I usually magnify by x10 and try and get it looking sharp, but that's not ideal. Any tips anyone?