BuyDig offers this SwissGear 16" Sherpa Laptop Backpack in Teal/Orange or Magenta/Teal for $24.95 with free shipping. That's the lowest total price we could find by $25. It features a stabilizing platform, air-flow back padding, adjustable shoulder straps, and mesh side pockets. It will hold up to a 16" laptop.
BuyDig offers the SwissGear Swiss Army Saturn Executive Messenger Bag, model no. WA27488140, for $24.95 with free shipping. That's tied with last week's mention, the lowest total price we've seen, and a current best by $25. It's designed for laptops up to 17" and includes a cushioned shoulder pad.