Man, 18ft, that is a pretty far throw distance, make sure your looking at projectors that can accomodate that distance and are light cannons.

Maybe the ideal thing to do then is to bundle up the cables in the ceiling and whenever the time comes just go fetch them and mount the projector where it needs to be...can't go wrong with that I suppose Randy. I never realized projector locations was so varied.

One more question (please bear with me, sometimes I'm a little slow while sometimes I'm extremely slow)... in the following example and according to the projector calculator am I correct in assuming that the Panasonic AE900 projector's ideal throw is 18'9"? I haven't adjusted anything, the following calculation came up whenever I entered 'Panasonic AE900U' ... is this a recommended location?

Panasonic AE900U Calculator.

or you tie a piece of rope on it and do it like the hammer toss.

That is just the screen that comes up, not the default or recommended settings (throw, zoom). There are two bullets and a vertical slider, one is for zoom and one is for throw distance.

If you want to see what throw distances work for a given screen size, adjust the screen size measurments at the bottom to what you want your screen to be. It will show you the range of throw, min to max, you can place your projector to achieve that screen size. If you slide the vertical bar up and down, it will tell you if you need more brightness or if your in the desired range.

Or, you can change the bullet to ZOOM, adjust your throw distance to what your thinking at the bottom, and then you'll see the Zoom range at any given throw distance. You normally don't want to be at the max or min of your zoom for placement, it is nice to have some room for adjustment.

Hope this all makes sense.