Bella Terra is a beautiful development in Estero. With 2,350 homes, the HOA has significantly more critical mass than other much smaller projects. Also, the higher developer price points in Estero made communities like Bella Terra less of a target for the buy and flip investors that overwhelmed Cape Coral and Lehigh Acres during the boom years.
If you are looking at anything anywhere in Southwest Florida that was built in the 2004-2006 time frame it is possible that Chinese drywall could have been used. A housing inspection is a must and is the best way to be sure that it wasn't used in a particular property.
Here is a resource to view the available listings at Bella Terra: http://www.greaterftmyers.com/bella-terra.php
Good luck with your search!