Buy.com via eBay offers the Alera 4-Shelf Wire Storage Unit, model no. SW604818BA, for $79.99 with free shipping. That's the lowest total price we could find by $13, although we saw it for $10 less a month ago. It features four casters and has a total unit weight capacity of 1,000 lbs. Deal ends September 20 at 11 am ET.