I'll do my standard semi-anti-internet plug (I say semi since I am not entirely against internet sales)...Having gone through the steps to become a Polk Audio dealer myself I know for a FACT that online sales of Polk Audio are NOT authorized [except for the following: Crutchfield, Electronic Express (TN residents only), J&R Music(NY,NJ,CT,RI,MA,NH,VT,ME Residents Only) and Circuit City].
If you want to save a few bucks and run the risk of having warranty issues later on...fine. Personally, I try to stay away from helping businesses that are supplying products illegally. YES, it IS in the contract with Polk that, as a dealer, they will NOT sell over the internet.
As I said in my first sentence, I am not against internet sales...if the company allows it. But if you want to sell/buy over the internet, Polk is not the way to go.
But since you probably don't give a damn about my opinion on the matter...
Kevin, I bought all of my lsi's from WWW.Sounddistributors.Com I recently had a problem with the one of my drivers. I called them and explained the problem. I sent them the old driver, they sent me a new one...NO PROBLEM!!