The desk my predecessor at work chose is a nice big cherry corner
piece with cabinets and drawers. The file drawers have plastic rails
*sitting on top of the sides*
for hanging files. They are pretty
chewed up, making it hard to slide the folders.
I'd like to replace them, ideally with something harder. I've found a
few systems (e.g., http://www.rockler.com/product.cfm?page 235), but
all of them put the rail inboard of the sides of the drawer. These
drawers are just wide enough to hold a file.