Canon SD550 or Canon S80 for Shutterfly 20x30

[nexx]

will either get a good or great quality print? will the S80 have a noticeable improvement? if it helps, the pics will be of family. thanks.

[Photo-John]

I believe the S80 not only has more resolution, but a better sensor and a better lens. It's not all about resolution. On the other hand, for a 20x30, more resolution will help. I would go with the S80. It's also a much, much more capable camera and you'll be a lot less likely to outgrow it.