In a previous life with the food industry, we only used Metro Racks. http://www.metro.com/ But probably costs more than home depot.
They also carry them in a coated green to prevent rusting. We had them in our frigs/freezers. In addition, they have plastic ones.
We used these in wherehouse storage and also seen pictures on the internet of hobbyists using this... http://www.homedepot.com/Storage-Or...splay?catalogId=10053&langId=-1&storeId=10051
Yeah, the thing I don't like about the racks you linked are the composite fiber board shelves. We use those at the winery and they're not very sturdy. I think the wire shelving is probably a much safer bet.