Is it worth investigating for our room?

[acritzer]

I've always wanted a projector. I've gotten my sound system to a respectable level (for now). But I'm really wondering if our room is reasonable for a possible projector. Any ideas?

-It's a family room addition. We have an entertainment center in place that we really like, which probably means any screen would have to be a pull down or motorized.
-It's got two windows on the left hand wall, as you look at the TV.
-Here's the kicker, two windows directly behind the viewer with a half circle window right on top of those. And two doors that are glass next to those, that lead out to our deck.

So, basically it's a room that we use for toys and such with the kiddies. It has an entertainment center in place and is generally a bright room. MOST movies would be at night.

Is it worth it? My only other option for the house would be a basement project...MUCH more involved, time and money. Also not sure about the sound bleeding into the area above that, where my 5 year old sleeps.