Is this $900 the most you ever want to spend on the audio system or are you willing to put more money in later as your budget allows? You will obviously end up with a better system in the end if you follow DWallach's advice.

If you want to spend $900 it is possible to get what I consider an acceptable surround sound system. (I could live with it as a bedroom system.) I just helped a friend put together a system like this. On my recommendation, he bought the Energy Take 5.2 speaker package and a Yamaha receiver. It sounds about as good as you could expect for $900.

-Dylan