I can't direct you to any of the spring-loaded devices, but here's what I did in a similar situation: The offices in my firm are equipped with two built in lateral file drawers. I now use those for other purposes, but my general reference filing drawers now consist of two two-drawer file cabinets that blend in with the built-in furniture in the office. All wood, and no spring loaded devices. So, I went to Staples and bought several of the large metal bookends, and cut out and glued to the bottom of them some of that stuff they sell in rolls to keep things from shifting around -- sorry, don't know what it's called, but you can get it places like Target, Wal-Mart, etc, maybe in the shelf paper section. Then, while I can easily move the bookends around myself, once I put them in place they stay put to support my files, until I choose to move them again myself.
Hope this helps.
Randy