Upload & Sell: Off
My D8000 is now approaching 3000 photos since I got it.
Battery life is about the same as on the D7000: about 1000 photos per charge.
Crap, I haven't even got my D800 yet, and you've already got the D8000!
Seriously though, 1000 per charge nearly fills up the memory cards I have, so it sounds like battery life won't be a significant problem for me
See, how simple plain mistakes create the next rumor wave :-)
My brain mixed up the 4digit D7000 and the 3digit D800.
Batterylife is critically dependent on your shooting behavior. If somebody is world champion in chimping he might not do so with 1.0000 photos on one charge.
Turning the monitor OFF (image review, option c4) helps twice. First, the time when the monitor is on is about 1.000x energy consuming than the camera in pure standby (turned-on, metering off, monitor off). Second, if the image review is turned on, the write speed of the SD/CF card is reduced by ca. 50% - which means the camera is twice as long in the power hungry mode of writing data.
Based on the experience in the past. Getting between 300 and 1500 photos per charge is rather an issue of custom settings the owner chooses plus the time each shot is beeing looked at, rather than a camera or battery issue.