Where? I'd love know.. for months I've been having to upload them all. When I attach the camera, a window pops up and I can begin import, and that's it. Nothing ever lets me choose, unless I've been blind this whole time.
You know, another way to do this is to cancel the import from iPhoto, go to your desktop, select your camera, open the folder with your pictures, pick the picture you want, and drag it to the desktop.