My sister is looking for a new digital camera, and she came to me with some questions.. but honestly I don't have a lot of experience with digital cameras. Right now she has a 4mp olympus camera that she is looking to replace with something better. 99% of the pictures my sister takes are in a hockey arena, most of the time she is shooting through plexiglass from maybe 30-50ft. away from the ice. What should she look for, something with a good optical zoom? she is looking to spend around $1,000 canadian / 750 usd. Any recommendations?