I have the PNT 737 bag. It is awesome. When I deadhead or non-rev, I usually valet the bag, and when I am standing next to the other passengers waiting for our bags, I get envious looks when they see what I pull off the cart while they pull off their busted bag. I haven't been at this long, but you can't beat that bag. I bought the $60 rolling case from Staples. So far it is ok and fits in the hole in the 145, but on my first trip, I lost both of the feet on the bottom opposite the wheels. The wheels work out ok for the day trips when I don't carry an overnight bag. Next time it will be the Scott case, or at the very least the ballistic case.