This thread saved me thousands of dollars! After reading this thread, I felt much better prepared to pursue a lease. The dealer's initial offer was ridiculous at over $15000 out of pocket for a 39 month lease.
I replied that this was a bad offer, even higher than the $929 down and $284 monthly for 36 months on ford.com. They quickly replied that they would match this (~$10,800 out of pocket) I countered with the information provided by all of you, i.e. most of you were spending a total of $9200-9600 for 36 months. Somehow with this info, they were "magically" able to come up with a deal of $0 down and $253/month (a total out of pocket of $9100).
I initially spent a total of about 45 minutes at the dealership when I first test drove the car (I actually left the dealership when he went "to see what my manager can do for you tonight" and told them to email me their offer). The negotiations consisted of 8 emails back and forth over a couple of days. Tonight I went in, signed the papers, got the tour and left in ~45 minutes.
Thanks to all of you this was a remarkably painless process and it was critically helpful to know what kind of deals I could expect to get. Thanks!