Just installed the Moose Racing Expedition Luggage Rack on my bike this weekend. Here's the product from Moose Racing:
http://mooseracing.com/catalog.jsp?l...75&startPage=1 It's the same product as the TCI Outback Rack
https://tciproductsusa.com/index.php...roducts_id=735
The MR version retails $380US/$430CDN but I got a great deal on it from a local store.

The rack is permanent on the bike but the cases can be removed via a spring-loaded mechanism that can be locked down as well. I chose this because it was A) cheap B) included a top-rack that is an exact replacement for my TCI Borrego rack which has worked wonderfully for previous roadtrips with my dry bag.
Have a bunch of close up photos and will write a review of the install process but thought I'd post the two pics I've uploaded first.