Guys, I'm helping out someone on a budget looking at a used Gf-3. I have my own so I'm familiar with the unit and menu system. I've never actually bought a used digital camera before and the last time I bought a used camera was back in the days of film, so I'm looking for any info and advice from anyone with experience. Basically i was able to check the sellers GF-3 body w/14-42 lens earlier today. The guy said he was new to the hobby and it didn't seem like he knew much about keeping his gear. When I opened the box, he had the body and lens separated without the body cap on the camera or the rear lens cap on the lens. Both were in those white styro/paper type wrappers they come in when they are new. He had already sold the 14mm that came with the kit so I guess that's where the rear lens cap went but I forgot to ask him about the body cap. There was some dust on the sensor and lens which I was able to get rid of with a blower. He came from an airconditioned mall to an open park outdoors on a hot day which caused a bit of light fogging in the lens when I took it out of the box. Initially I saw round circles and patterns which I took for fungus but as it dried up it cleared up nicely and I was unable to detect anything apart from little particles of dust. I checked all the normal things like using dof preview to check the aperture blades, tested different drive modes and shutter speeds. Also, did the lcd, contacts and everything does seem fine. All the dust and stuff is nothing I can't clean myself, for some reason my memory card malfunctioned and I was only able to take 15 shots, half of which are blurred from when I was testing the continuous shooting on a low iso, but I did get the some good ones showing clear, sharp images. I took one of the bricks on the wall and the lines were all straight. One of a white background at f11 and there were no clear spots or blemishes. Everything seems ok, obviously there are things I can't check for like water damage and stuff like that but overall it seemed fine. Could have been in cleaner condition but the guy really did seem like he just didn't know how to take care of his gear. If he was trying to hide something he would have probably done a better job presenting it by attempting to clean it. Anyway, I'm still not sure if I should go ahead with it. Does this sound like a straight forward exchange or is there something I've missed?