Check this out.
How High a Resolution is 21.1 Megapixels?
http://rolandlim.wordpress.com/2008/12/07/how-high-a-resolution-is-211-megapixels/
Canon - Canon EOS 5D Mark II 21.1-Megapixel DSLR Camera with EF 24-105mm Lens - Black Sale: $2,749.99
http://www.bestbuy.com/site/Canon+-+Canon+EOS+5D+Mark+II+21.1-Megapixel+DSLR+Camera+with+EF+24-105mm+Lens+-+Black/9909482.p?id=1218193384679&skuId=9909482