I had a first run Gateway bag. It was fine except I didn't like the pocket situation. There was no loop for the towel to clip to and no pocket for a water bottle. I believe that most if not all of these problems have been fixed.
However, when I went to replace the bag, I chose a Revloution club bag. I chose it because of their reputation for a quality bag and the price. The club bag does hold more discs than I ever use. This means I have plenty of space for an extra towel inside the bag along with an extra drink bottle or snacks. The side pocket are large enough to carry all of the other stuff I tote around. It also has a rain fly that you can cover the opening and snap shut. I'm very pleased with the quality of this bag. It also came in purple.
Try the baby Revolution bag. Holds about 12-13 discs. Real lite too.