The likely answer to that question is YES! Beaches Turks & Caicos is almost always running a promotion of varying savings. For example, today (July 12, 2009) they are offering up to 65% off the room rates, 2 nights free, and $250 Red Lane Spa credit in certain categories! This is a huge savings!
Low season in the Caribbean is April 15 to December 15. Traveling between these dates will ensure you get some of the lowest rates of the year.
The best way to find out if Beaches Turks & Caicos is on sale for your travel dates, is to visit their sale page right here.
Be sure and check the terms & conditions for any special rate you see listed because it could be that you need to adjust your dates slightly to get the best savings! A slight change can sometimes save clients hundreds of dollars.

Photo courtesy of Beaches Turks & Caicos Resort