You might try some of the large Travel agents that have Embassy Suites as one of their group hotels and get you good rates without bidding. Locally to me that would be some one like Liberty Travel.
When are you going?. There are a few times a year that there are no bargains on the major hotels in Ft Lauderdale. For example, at the end of Oct or beginning of Nov. they have the big in water yacht shows that attract thousands of exhibitors and attendees for a week or two and all the hotels anywhere near the water get booked up.