Don't you hate it when you read a new post, type out a nice, lengthy and informative response; are about to post it, and then see that someone else has already beaten you to the punch?

Kudos to shadowfax for answering Don's questions. You said everything I was going to say, except for this:

Consider this: when altering the resolution (ppi) of an electronic image, the rule of thumb is that you can alway go down, but you can't go up. Say you have a 5-inch square, 300 ppi picture of Ticia. This means you have a 1500 square-pixel image. If you want to print it or display it smaller than that, no problem. You could change it to 3X3in at 300ppi, or you could leave it at 5x5in and change the resolution to 72ppi, if you wanted to put it on the web for instance. But if you start bumping up the size OR the resolution, you're going to have problems, because no matter what settings you choose, you really only have 1500 square pixels to work with. When you start increasing the number of pixels in the image, the image is going to get fuzzier and fuzzier looking the more you bump it up. If you really needed a higher-res image, you would have to scan the original photo at 600 ppi or whatever resolution suited your fancy.

Gri"graphic designer too"shny