I'm a fan of Canon Cameras and have two: the A75 (my old camera) and the A540 (my new 6 mp). The Elph is also an excellent camera.

Big decision you need to make - do you want a camera with a proprietary battery (such as the Cybershot or Elph) or do you want a camera that takes AA batteries? I opted for the camera that takes AAs. Just in case, I can always carry spares and can alway purchase AAs if the batteries die. If you are good about recharging your battery then the other is OK. It's really personal perference.

I really like the A540 - it is very easy to use, has many features and a large LCD screen. Price is reasonable (check out Costco.com). It fits easily into my Bento Box!