I ended up getting a LowePro Nova-something-or-other as well. You really need to find yourself at a good camera store, gear in hand, and play with the different bags. I spent maybe 30 minutes loading and unloading bags. Just for the LowePro Nova's, there are four different sizes (Mini-Nova, Nova-1, Nova-2, and Nova-3), and a few other closely related bags available. I'd say that you should never purchase a camera bag sight-unseen.