Hello! I'm having a problem fixing some drawers in our recently
purchased house. They've got a drawer slide system that I havent seen at
any hardware stores yet.

The current slides use two things attached to the back of the drawer
that look like this: http://www.bunkmonkey.com/drawerslide.jpg. This is
what I'm trying to replace, since it should have a little wheel on the
bottom. The wheels hang below the bottom of the drawer, and ride along a
rail. There are wheels inside the cabinets towards the face that the
drawer rides on. Like this, but less blurry in real life:
http://www.bunkmonkey.com/drawerslide2.jpg

So, does anyone know where I could find these things? The text stamped
on them (GRANT DL) hasnt led me anywhere yet.

Failing that, are there easier to find drawer slide systems that dont
require attaching anything to the drawers, except the back? The drawers
dont have enough clearance for attaching rails to the sides without
cutting a notch in the cabinets - and that notch would probably be
visible around the drawer edge since the drawer face lip is very small.

Thanks,
Joe