Dear List:

We are building a new gym, and that means an audio and video system.

The concern at the moment is more on the video side.

I would appreciate any and all feedback (off list is fine) regarding

1.) projectors that will work in a long throw, bright environment.
2.) a cage or other system to project the projector
3.) We are considering using screen goo, instead of a screen
to avoid manual and mechanical ups and downs, and potential damage to a 
fixed size screen.

anything I am not anticipating??