I have two very sturdy/heavy metal cabinets with fully adjustable
shelves. These are commercial cabinets made by Pitney-Bowes, and are
in excellent condition. Each unit also has adjustable leveling feet,
and there is a provision to strap both cabinets together in back.
These are thick metal, large, and heavy - 80" tall, 42" wide, and 16"
$30 each, local pickup only (Dallas area), I can help you load.
Pictures and contact info here: http://dallas.craigslist.org/bfs/300340863.html