if you just want something cheap that will work for now, check out some of these boxes. they have friction slides, but offer tons of drawers at a cheap price.
http://www.harborfreight.com/cpi/ct...ryid=503&pricetype=S&categoryname=TOOL CHESTS
http://www.harborfreight.com/cpi/ct...ryid=503&pricetype=S&categoryname=TOOL CHESTS

with a 6 drawer sliding chest, and a 5 drawer chest that sits on it. ive loaded it with 500 pounds of **** before and its holding up fine. 