This is what I have in my garage........They are designed for trailers, but they are great for the garage.........not cheap, but they are alum, and will last forever.........
http://www.blazinbelltech.com/premium-cabinets.html
If you order some, tell them Matt sent you, and it just might get you a deal........
They are in Vegas, but they come to SoCal frequently, and they can ship anywhere....
Shrek