BenQ MP782 ST Refurbished 2500 ANSI Lumens Black Short Throw Projector $450 OFF for $549 + free shipping
This is a great projector for the classroom. It's short-throw, so you can use it in tight spaces, and it's even 3D ready. I've seen it used as an interactive whiteboard, which takes learning on a whole new level!
I just can't believe it is this inexpensive now!