Long time never post here liao.

Cant wait for them to announce D800/D4 officially.

anyway, i've come across an article written by Thom Hogan but i'll not point you there because this could be a good discussion here.

Do Amateurs Need More Pixel and Pros probably dont? Trend nowadays is to pump more pixels into amateur cams

36mp for D800 is just overkill imo.

I dont need that much pixel and besides it's only 4fps in FX.

If the price between D800 vs D4 isn't much different, i think i'll go for D4 for smaller mp, faster burst & buffer. Moreover, same sensor size between 16mp and 36mp, it doesnt look like D800 will perform as well as D4 in low light shooting. That 36mp is more suitable for studio job

^
yup, save a bit more for few months and you got yourself a D4

Face Recog for both cams, i guess D4 will have dual Expeed3 while D800 single Expeed 3