Do your homework guys, there are certainly bargains to be had when chasing camera gear..
I picked up 5 A lenses and a 645N Camera and kit and hard case all of Fleabay, from a dude in the USA for approx $600 something dollars. (45mm, 55mm, 75mm, 120mm, 150mm) All absolutely amazing glass and as new not a scratch or mark on them, the owner was very particular and had loved them.. And they all work superbly on the 645D...Crisp/sharp great colour etc etc..
My 645D again purchased second hand ( 8 months or so old) at 30 % discount of NEW price WITH the 55mm Digital lens..
Canon 44 inch LF printer, 12 months old with heaps of ink/paper/frames ...Owner had to sell i was looking 70% discount on new price....
Maybe i was lucky, and im sure others have similar stories, just dont rush it, take your time and look around...
Anyway slightly off topic, but thought i would share my experience.