My wife told me it was time to finally upgrade our Canon A40 and from reading the comments here, it seems like the Canon PowerShot A710 might be a good option. I also have read a bit about the PowerShot SD800 / SD850. I would like to use this camera diving as well so I want to make sure it has the necessary features I will want. Unfortunately, I am mostly a camera novice and while I am working to educate myself on what I should want, many of the terms and jargon might as well be greek at this point.

I leave for Mexico in about three weeks so I have limited time to make a decision. Does anyone have a recommendation about a comparison between these models?

A side by side comparison can be done at:
http://www.usa.canon.com/consumer/co...categoryid=113

www.cnet.com also has a good review - but they obviously are not focusing their review on underwater use.

Thanks for any feedback!