2001 Rav4 road noise dampening

[Amazingly Smooth]

Anyone ever use the Dynamat stuff? Or the Silencer brand? I want to reduce the road noise of my 2001 Rav4, but I spoke to three different sales guys and all three said something different:

1) Car Toyz (Austin, TX): it will be great, but you must get the entire floor done ($600).

2) Best Buy: works great, but you will only need the doors done.

3) Circuit City: won't help on an SUV--get smaller tires.

Any thoughts?

[Zorin]

You need to do the floor do get the noise level down.