... when there's UserTesting.com?
If you have a winery Web site which doesn't seem to be working for you, it might be worth spending the $100 it takes to have 5 separate testers visit your site. For each tester, their interactions are recorded (as a Flash movie) and the tester produces a written report of what they liked, didn't like, and what would cause them to leave your site.
Please let me know if you take advantage of this service.
(pointer from this Duct Tape Marketing post).