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10.2 megapixels at 300dpi for the photos above. Most "Pro-sumer" cameras are around 4-6 megapixel with the professional cameras at 10 and above.
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Not trying to be mean, but I think that needs some clarification. The images in this thread are neither 10.2 megapixels or 300dpi- they're actually less than one megapixel as we see them here after you've resized them. Dpi is something that you refer to when printing, and on most computer systems are displaying these at 72 pixels per inch(~dpi).
The minimum resolution of an image to cover most displays is something around 2 megapixels. Most people have their display resolutions @ 1024x768 or more. So if you want large images, you don't need tons of megapixels, but it's nice to have a lot of size to work with for cropping and especially resizing- as the author of this thread has done. The more you are able to shrink your original image, the sharper it's going to appear.
Really though, anymore it's not about how many megapixels your camera is... they all have more than enough now. That is unless you are a professional. It's better to invest in a camera that has excellent optics rather than a super large CCD. Which is why those lower end Nikkon DSLRs are a great choice.