I have a barely used ZWO120MM monochrome camera for sale that has only been on the scope a couple of times. As you can see from the attached image, it is still in the original packaging with all items intact. I was thinking about using it for a guide camera but decided to go with the Lodestar x2 instead. It is certainly a great little camera for planetary/all sky imaging or to use for guiding. I found that it worked quite well with PHD guiding software.
Brand new price at the moment is $369 so I will kick off discussions by asking $250 plus postage.
More information on the camera can be found on the Bintel site
here.