I got one of Bill's hitches installed a bit ago. I'm really pleased with the quick release feature of the hitch!
This past weekend I finally got my hitch rack. I ordered the Quick Rack from 1upUSA: http://www.1upusa.com/
This rack met all of my requirements. I ride every day at lunchtime, so I bring my bike to and from work frequently. I wanted something lightweight that holds the bike securely (preferably not by the frame), doesn't block view out the rear window (especially when no bike is mounted). The 1upUSA rack is less than 25lbs, takes about 10 seconds to put the bike on and off, folds up nicely against the bumper when no bike is mounted, and even folds up and fits in the trunk:
edit: Update first image link