I would go with the S2. It's cheaper and the S3 doesn't offer much of an improvement to spend more money on. Warning though, it doesn't come with much of a memory card. So, you'll probably have to get another of those, too. I'm not sure what the a95 memory cards are, but it may take the same as some DSLR's.... *nudge nudge* My XTi takes the same as my A80.