Hi I'm new here and am looking to build a budget 5.1/upgradeable to 7.1 Sound System. The room I am putting it in is about 25 x 15, but only about 3/5 of it is going to be used for home theater. There is an overhang about 2 feet behind the seating position, which I think makes it perfect for 7.1, but I don't know if $500 will give me any options for 7.1 I'm looking at doing something like this: Athena Point 5 ~ $150 Onkyo TR-SX503 ~$150 Dayton 12" Sub ~ $120 Total ~ $420 How do you think that system would sound???? I've tried to get the Point 5 system at Best Buy, but all of them in my area are all out within 50 miles or so. Can anyone suggest anything similar for around the same price range??? Thanks alot for any suggestions.