PremiumSoft has launched Navicat Data Modeler (http://macte.ch/cxjAr) for Mac OS X (10.5 and higher) to their supporting platform. It costs US$199 for a commercial license and $79 for a non-commercial license.
Navicat Data Modeler is a standalone product to provide d functions and features in data modeling. It’s designed to provide customers an easy yet powerful way to create data models for MySQL, PostgreSQL, SQL Server, Oracle and SQLite databases, according to the folks at PremiumSoft.
Navicat Data Modeler supports MySQL, PostgreQSL, SQL Server, Oracle, and SQLite and a database structure visually. It performs reverse/forward engineer process, imports table structures from ODBC data sources, generates SQL files and print models to files and more