How much are you willing to spend?
Do you want a new one or a used one?
How old do care about it being?
Do you care if the lens is Carl Zeiss or Schneider?
Do you care for 2.8 or 3.5?
Do you need a built-in light meter?
Do you care for TTL?
Do you care if you need to replace the dim finder with a brighter one?
Do you need a self timer?
Is there a chance you will change the Waist Lever Finder for a Prism?
My thread on getting one has lots of information:
http://www.apug.org/forums/forum51/4...iflex-e-u.html