Rich,
Run, don't walk, to your nearest Thule dealer and get the following parts:
387    high foot gutter set        $120.00
LB 65        65" load bar          $ 38.00
542     artificial raingutter        $ 45.00
579     canoe carrier               $ 66.00
544     4 lock set                    $ 35.00

This is everything you need to carry a canoe, this is a modular system, you
can later add bike, ski, and luggage accessories if you desire. It seems
expensive but it is well worth the investment, my system is 12 years old and
still going strong.

Rich Jones wrote:

> I'm tired of haphazardly tying my canoe to the roof with foam blocks, so
> I'm interested in what list members use.  Specific model numbers/prices
> would be great.
>
> Rich Jones
> '89 Westfalia