Are there good third party EDMX generator/updater tools out there?

Are there good third party EDMX generator/updater tools out there? The visual studio EDMX is driving nuts. I constantly have to restart VS2008 in order to get the EDMX to properly update. Are there any tools out there people like?

This is somewhat subjective but I figured it would be ok to ask nonetheless

The only one I know about for now is the Huagati DBML/EDMX Tools. They offer great value for Linq-to-SQL (ability to update model etc.), but for EF, it's probably a bit less compelling. But check them out! Worth a look.