good finds

Being in the saltwater hobby you see a lot of second hand items come up for sale, what would you say is the best item you have gotten? Whether it was a great deal, or something that you had been wanting for a while but couldn't afford brand new? Or even a fish or coral that someone was trying to...

What is the best deal you have ever gotten in this industry? Whether it's something that you got on sale, a rare coral that was being marketed for a basic price, or equipment/setup that someone was basically giving away?