We will probably do the S3 if we go that route..as its only $50 more online...
I don't think I could get an SLR ... and do a tank upgrade in January... LOL ... especially since I've promised to buy new bedroom furniture before I do the new tank upgrade...unless my boss gives me a bonus or something

I was really just trying to make sure that I got the best bang for my buck since this is really supposed to be a present for her... not to take photos of my tank...but hey... I may as well look into that side of it too..heh. Although one thing I was put off by..was the underwater casing price for the s2 ( didn't look at the s3 ). We go to the keys sometimes and go snorkeling...we'd like to be able to use it there..but I guess I could get one for my current camera..those are only $100 or so. But the case for the A620 is only $160...thats something I'll keep in mind when we are looking at them.
I know what you mean by the image size

I do a lot in photoshop for websites, etc, and we do a lot of image/video processing at work...
I will get to the mall w/ her in the next couple of weeks..she is out of town the next two weekends... but after that.. we'll go..and we can have the guy show us both of them.