Anyone have experience with bags that can carry a 14" HP Elite and an 11" MacBook Air? I have to carry my work PC back and forth to work and home, but I'll also be carrying my MBA for personal use. I'm open to backpacks, messenger bags, laptop cases etc. I want it to carry both machines securely and have room for an assortment of chargers, camera, iPod, pens etc. And I'm trying to avoid a gigantic bag. Thanks for any insight!