There are a number of parameters one needs to take into acount when choosing a new camera. I'll focus on one or two here, no pun intended.
Once you reach a certain pixel count, you can get a diminshing return on increasing the number of pixels but it does depend on what you intend to do with the photo once you've taken it.
For computer screen viewing and home print outs, 4 megapixels will work fine but to me the size of the lens is the most important. A larger lens captures more light. If you compare two photos, one with a small lens at 8 megapixels to one with a large lens at 4 megapixels, the latter will give the better picture.
Large pixel count cameras do give you an option to zoom and crop and not lose much resolution but if your camera has a macro button for close ups (and it will if you buy one with a larger lens), you probably won't need to zoom on your computer much.
my two cents.
Once you see the bandwagon, it's too late...
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