There is a new utility up on Labs from the team that brought you Vault. It's name is Snap and it's an indexing service for your CAD files. The goal is to have a single interface to use for searching CAD data. Currently Snap runs in AutoCAD and only indexes DWG files stored in Windows folders.
Wait, doesn't Vault do the same thing?
Yes... once you add the CAD files to Vault. Snap is different because it runs on your local computer. So there's no server component. No login. No setting up a working folder. All you need to do is drag in the Windows folders that you want to index, and Snap will do the rest.
There are other features too, such as the ability to create snapshots and saved searches. Check it out on Labs. There you can find the download link and demo videos.
Oh, and be sure to let us know what you think.