I have a a 4Gb for my D2x as well as 2 - 2Gb and several smaller.
I find that the 4 Gb had been my favorite for active butterflies, scenics etc and provides 200 exposures.
I just bought an 8 Gb Lexar 133 which allows me to shoot all day without changing(about 400 NEF images) and use the 4Mb for back up. Including the rebate, the 8Mb cost $80 which I couldn't resist. I really see no point in having smaller cards and having to change them during the day. I think that the reason most of us favor the smaller cards is because they have historically cost less per Mb and durability has been rumored to be better. I test any new card before depending on it and use it in only one designated body.
Considering price, I would recommend going with the 8 unless you like to replicate the feeling of film in which case buy one that gives you 36 exposures
I find that the 4 Gb had been my favorite for active butterflies, scenics etc and provides 200 exposures.
I just bought an 8 Gb Lexar 133 which allows me to shoot all day without changing(about 400 NEF images) and use the 4Mb for back up. Including the rebate, the 8Mb cost $80 which I couldn't resist. I really see no point in having smaller cards and having to change them during the day. I think that the reason most of us favor the smaller cards is because they have historically cost less per Mb and durability has been rumored to be better. I test any new card before depending on it and use it in only one designated body.
Considering price, I would recommend going with the 8 unless you like to replicate the feeling of film in which case buy one that gives you 36 exposures