I have a SwissGear by Wenger computer back pack and it is my best friend on a long trip. It has tons of pockets/zippers to store everything. Make sure you don't buy something that has easy access pockets for thiefs or pockets that spill everything if the bag is accidently turned upside down. Don't be afraid to bring your computer into the store to make sure it fits well or buy from a store with a good return policy so you can actually road test it.