Upload & Sell: Off
I have a small Sony 5N that I bought for cheap. Replaceable lenses, good low light capabilities, 10fls capabilities, really small, at least compared to the Nikon 3Ds :-).
The drawback of the 5N is that once you shoot an image (or a burst), you need to wait for the image buffer to flush to the SD card before you can shoot again. But I think this is different on the newer models.
I usually take it with a Rokinon 8mm F/2.8 (with a crop factor of 1.5, it's a 12mm equivalent in 35mm parlance). The Rokinon is tiny, and it's is a fully manual lens: manual focus (but at that focal length who cares... depth of field is not a problem) and you have to use it in aperture priority or in manual exposure (which I do). Image quality is pretty reasonable considering the price (soft off center), but again, for the purpose it's pretty nice.
You can get something like these: