We've been using TortoiseSVN and SVN for some time here with a very good success for non SW development areas.
We've been using it with hardware schematics and layouts, as well as product documentation, with various levels of people using. Just don't forget to set "needs lock" as a default property, since most files are binary.
Also, we have a IT infrastructure team that uses SVN themselves, so we don't need to worry about servers and our products have software and we use it for sw/fw as well. So we (sw/fw developers) act as first-level support.