It's hard to answer as I'm not sure what you can get on ebay for that money. The condition of the camcorder will be as important or more important than the specific make/model.
Consumer camcorders don't have XLR mic inputs, and many don't have mic inputs at all, though some have minijack inputs. If you don't mind unbalanced audio you can use a plug adapter, or you can use something like a Beachtek but that will add to your cost.
http://www.audiogear.co.uk/acatalog/...amcorders.html