A few weeks ago, I was shopping diligently for a tripod. I scoured the internet up one side and down the other searching for something used, demo, or b-stock, so I could save some money.
I ended up getting a demo Cartoni Delta, 2 stage CF sticks, with a spreader and soft case for $4689 (including shipping), and it included a 5 year warranty.
A similar system is $6,000+ from B&H:
The place I got it from is called Media Concepts, and they have the best prices and widest selection of tripods of any place I found.
The best part is they have an inside track on gettting demo and used equipment directly from the manufacturers.
My contact's name is Gary Dennis. Here is his info:
Media Concepts, Inc.
The direct link to the tripod section of their site is:
I don't have any reason to endorse Media Concepts, except for the fact that they took good care of me and got me a great deal on a tripod.