Where do I find model concept for panel carpeting? I want to re-carpet my living room. I have recently see some...

I want to re-carpet my living room. I have recently see some commercials for carpet panels. They have some good ideas of mix and equivalent the panel colors to make interesting patterns surrounded by the carpet. I am looking for a couple sites with different option for residential carpet panels. Also, where on earth to find the best price for residential carpet panels?