[HairOfTheDog]

Well, my techieness does not include audio visual systems either... and my only hope is that I can memorize the words that OT just tossed out here, and repeat them in coherent conversation at the store!

[Bear_in_RoseBear]

I think you'll do all right... most places that sell this type of equipment have salespeople that can answer any questions you might have. Just don't let them sell you an expensive system you don't need... if you're not sure, walk away, go home and do some research on the web, and then go back.