Has anyone here purchased any Polk speakers before? These are marked down at crutchfield from 499 to 299, with a free speaker stand and i think you can even upgrade the subwoofer for free. My room is 13 X 16 with the tv being on the 16" wall. 50 inch toshiba. Havnt looked at receivers yet But just wanted to find some surround sound speakers first. What are your thoughts on Polk Speakers? And is this a good deal thanks.