I just replaced an OGIO Metro with an OGIO Mastermind backpack.  Both look great, are well made, and comfortable and the side-entry zipper for a laptop is convenient.  The Metro is fairly compact and can hold up to a 14" laptop.  The external pockets seemed small but I found they held everything (computer power supply, Blackberry, cables, GPS) perfectly and were designed to prevent things from falling out if a zipper is not closed.  Several interior pockets allow you to store/organize small items and protect them from damage.  Unless you need to carry a lot of stuff or have a larger computer, the Metro is a really good choice.