The Java-based Oracle SQL Developer has a plugin module that supports SQL Server. I use it regularly on my Mac. It's free, too.
Here's how to install the SQL Server plugin:
- Run SQL Developer
- go to this menu item: Oracle SQL Developer/Preferences/Database/Third-party JDBC Drivers
- Click help.
- It will have pointers to the JAR files for MySQL, SQL Server, etc.
- The SQL Server JAR file is available at http://sourceforge.net/projects/jtds/files/
