Any thoughts and what are some different things beyond canoes or kayaks people have put up top??QUOTE]
Here's what my canoe looks like up on top. On the much lower truck with a topper loading/unloading was a one-person job, with the load rails on the van sitting at 8'-10" this is now an (easy) two-person job.
There are a few more pictures and details in my build thread, but this gives you the idea.