So I ordered a Canon Powershot A640 today and should get it by Wednesday. I was wondering if anyone has this camera and can relay personal experiences/reviews of it. How is the shutter lag between shots? How is the battery life? How many photos do you get to your respective SD cards? Also - I have a Canon EOS Rebel K2 35mm film camera with a 28mm-90mm lens. Can I use it on my new Canon camera? Thanks for any help!