i would highly suggest going to a site like
www.pcworld.com and searching through their product reviews.
You also want to pay attention to the features (besides the obvious ones like the megapixels) screen size, user-friendliness, battery life, picture quality and things like that.
if you go to
www.bestbuy.com and look through their digital cameras, it gives you a lil taste of what is out there. the thing i like about that site is you can compare the features of the different camera models and find one with the features you want and the price you want (don't I sound like a commercial? :P )