This great tool allow you extract data from a SharePoint Database directly through SLQ. So in case of a crash, if you just want to restore a few documents, don't bother to install a new SharePoint Server, just restore your SQL backup in a new BD and use «SharePoint Database Exporter».
Many thanks to Pascal Gill who gave us this great tool for free.
More infos and Download : blog.dreamdevil.com
Note : There is an Alpha (pre-beta) version of SharePoint Database Exporter for Sharepoint 2007 and WSS 3.0.