Dell Small Business offers Timbuk2 x Dell Prompt Messenger 15" Laptop Bag for $49.99 with free shipping. That's tied with our mention from last January, $20 off list, and the lowest price we could find. It features a padded sleeve that accommodates laptops up to 15", side-entry pocket, exterior zip pocket, and adjustable padded shoulder strap.

It's not expected to arrive by Christmas.