Crager724 said:
Thanks for the replies I should have said in my original post that I have a digital, point and shoot Sony. Sorry for any confusion. So I'm guessing that the more ISO settings a camera has the more you can do with it, in theory.
Actually, I'm really sorry for being so tangential, because I think there's a piece of information we haven't provided you with that is really important to your original question.
ISO sensitivity settings are standardized, in the sense that ISO 50 or 100 should be the same from camera to camera. What is not at all the same from camera to camera, is the amount of noise that will be generated at increasing ISOs. This is very dependent on the sensor the camera uses. So it really isn't the number of ISO settings a camera has that's a feature or perk in digital cameras...it's how quickly noise becomes a problem with increasing ISO.
If you look at DPReview.com, you will see that, in their reviews of cameras (this is the best one I know for this particular purpose) they use a loosely standardized method of testing noise as a function of ISO setting. Look at a couple of cameras, particularly comparing a dSLR to a point and shoot, or even compare a Nikon and a Canon, and then I think it'll be clearer what I mean.
But in answer to your original question, again, ISO-Noise relationship is much more important than the raw # of ISO settings, for most users.