Microsoft recently updated SQL Server Data Tools (SSDT) with support for Visual Studio 2012, improved LocalDB functionality and new SSDT Power Tools. SSDT, if you're unfamiliar with it, is a ...

The Microsoft SQL Server team has made incremental updates to SQL Server Data Tools (SSDT), updating the Schema Compare utility, improving Microsoft Azure SQL Database security and supporting Parallel ...

I've been using the Schema and Data Compare tools built into Visual Studio. They seem to work pretty nicely and will generate change scripts. Might be worth a look if you've already got Visual Studio.