Need more space!

We are desperately needing more storage space for all of our "stuff". I just want to make sure that we get something that does not need a lot of painting and upkeep once we get it (Painting and making sure it does not get infested with termites. I told my husband that I really think that we should go with one of those nice steel buildings. I think that they are better for the money and will last for years more then one of those wooden storage buildings.