Can anyone tell me what would be the best digital camera? (megapix 8.0 and up)?

To answer your question accurately, you have to first come up with an idea of what you need that camera for !
What is your purpose of photography ? Portraite ? Family ? Underwater ? Macro and close-up photography ? digiscoping ? fashion ? outdoor ? and ...
then you can find a proper guide where you can find the best camera that matches your favorite photography.

but if you want to choose a camera to cover most of the above mentioned topics , you can use one from Nikon Coolpix , Canon Powershot series or Sony Cybershot series. then use yahoo's smart camera chooser to get some taste of what is there for you..

By far the best is the Canon EOS-1D Mark II, but it will set you back about $4000. Go to, http://reviews.cnet.com/4566-6501_7-0.ht... for a review of 8+ megapixel cameras.

The one you buy is going to be the "best camera"....as far as you know anyway. Don't worry about buying the best.... Buy the best for you!