Also, I have NO idea how the dark slide came out. I was fiddling with the camera, taking the back off, taking the lens/screen/wlf off, just generally absent-mindedly playing with the thing. I was having some "problems" getting the lens off and after I was done with that I looked down to see the dark slide not in the back anymore. No idea how that happened, lets hope it's nothing big.
Finally, I was going to ask: I got a VERY clean (read: like new) condition 50mm f/4.5 ULD for $350. Good deal?