Projection Screen

Hi all!

I am looking to buy a projection screen to create my home theater. Does anyone know what to look for when buying a good quality projection screen with a black frame? There are so many projection screens out there but are they any good? What is a good brand or does it not matter?

Also, when you buy a projection screen, does it usually come with the black frame or where do I go to buy a nice looking black frame to go with the screen material? Does the frame usually come assembled or do you have to out it together yourself? I assume the frame will come with a user manual to show you how to put the frame together.

Thanks!