When is the best time to book a flight to the Bahamas and get the best airline deal possible?

We're looking to book our flight for our honeymoon which isn't until January, 2012. Yesterday i found a deal on expedia for $975 for 2 adults round-trip from Chicago. Is there a chance of finding a better rate than this? We only traveled by plane once and that was from Chicago to Connecticut and we paid about the same then too.