Rack/shelf for albums - suggestions please


I just redid my basement and the last detail is to pick up something to store my albums. The last shelf system I had was made of MDF and started to sag from the weight. So, thinking of a rack, maybe 4' > 5' wide, same height to hold roughly 400 albums. Prefer metal but not the cheesy metal racks offered at home depot to be used in a garage.
Any suggestions for some thing industrial grade BUT not too costly?
pdspecl
Expidit is a great way to go. Use a little wood glue on both ends of the shelf wood pegs when you assemble the shelf unit and the collapse you see on some Internet pictures will not happen.
Gothic furniture

http://www.gothiccabinetcraft.com/products/LP-Record-Tower%2C-14-Shelf-w%7B47%7D-Base-.html

The IKEA shelving is crap.
If you're still looking, we might be of help. We are a husband and wife furniture company located in Chicago. Our niche is audio and component storage. We have standard designs, but offer custom work as well. We give you a functional piece of furniture for your LP storage and the pricing is on par with Crate & Barrel and Room & Board.

www.BrokenpressDesign.com
If you're still looking, we might be of help. We are a husband and wife furniture company located in Chicago. Our niche is audio and component storage. We have standard designs, but offer custom work as well. We give you a functional piece of furniture for your LP storage and the pricing is on par with Crate & Barrel and Room & Board.

www.BrokenpressDesign.com
http://m.ikea.com/us/en/catalog/systems/10364/11465/11703/
I use the Ikea IVAR system. Adjustable, sturdy and no sagging. It us solid pine and finishes easily if you want. I used a quick coat of shellac to finish mine. Oh, cheap too. I use the 12 inch wide shelves for records as that gives me dividers every foot. They are 2 depths: 12 and 18 inches. Perfect!