SmithBridge have a new offering that take the work out of converting your existing Access databases to Web databases that can run on SharePoint. They check your database to see if it conforms to meet the SharePoint requirements, analyze the data and update the tables to conform to the Compatibility Checker's rules. The result is a database that is fully compatible with Access Services and ready to be run on SharePoint. The offering really makes getting started with Web databases on SharePoint much faster and easier.
More Info: Access Web Database Conversion Tools