MindShift Gear (from the same folks behind ThinkTank bags) is having a great sale on their UltraLight series of photo daypacks — you can save 20% on either the Sprint 16L or Dual 25L or 36L bags, while quantities last.
These are very good looking bags with many great features — too numerous to list here. The “Dual” bags have a removable insert that can be used as its own shoulder bag. The bags are also incredibly light — less than 2 pounds for the small bag, and 2.9 and 3.3 pounds for the larger bags.
Check out the sale at MindShift Gear.