Staples offers the Western Digital 320GB My Passport Essential Portable 2.5" USB 3.0 External Hard Drive in Charcoal, model no. WDBACY3200ABK, for $39.99 with free shipping. (This price appears on the product page and at checkout, but not in-cart.) That's $0.12/GB, tied with our October mention, and the lowest total price we could find by $6. Deal expires March 16.