What is the best digital camera out there with the best zoom and highest image quality?

Canon EOS 1D Mark III (for faster shooting) or Canon EOS 1DS Mark II for commercial quality.
You can buy lenses from the Canon eos line to fit any need.

I like my 1D Mark II, more than the DS, but it's really personal preference. They are both suburb.

nikkon L3

I like NIKON. Great software support too.

Check out the Canon EOS range, any of their high end SLR cameras you'll find are used by almost all professionals shooting in digital. Difference zoom is provided by the type of lens you purchase.

I don't know if it's the best, but I love my Sony Cybershot DSC-H2. It's not a DSLR. Excellent 8X10s. 6 megapixels, 12X optical zoom,image stabilizer. very good on batteries. Has settings of aperture priority, shutter priority, and auto. Buying it won't break your pocketbook.

Buy the Canon EOS 5D because it is full frame and I believe it's 12MP. The Canon SLR's are feature rich and have auto settings for those pics without if you are not comfortable with all manual settings.