I suspect that this may be a little more fiddly than you really want,
but Woodfit stock a range of drawer systems made by Blum, called Tandem
Box Plus. These drawers are metal sides and back and take a 10mm thick
peice of wood for the base so they are darn sturdy. The fixings for
fitting the drawer fronts to the new drawer system is a doddle too.
Well made stuff, solid runners, decent load support, nice action,
reliable. Funilly enough, this is what Ikea now use for all their
kitchen drawer systems.

Seri