Provantage offers the Case Logic 16" Notebook Carrying Case in Black, model no. ENA-116, for $15.03 with $6.45 for shipping. (Dell via eBay has it for pennies more.) That's the lowest total price we could find by $2, although we saw it for $3 less in August (since expired). Features include ripstop construction, zippered closure, adjustable shoulder strap, and more.