Found a new product about a month ago at the Good Life Market in Pittsburgh (which, incidentally, has the best selection of gluten-free foods in one store that I've ever seen). Anyway, it's a gluten-free nutrition bar by Omega Smart that is also vegan.
Most of the flavors contain soy or nuts, which I avoid, so I was only able to try the Banana Chocolate Chip bar and the Pomegranate Strawberry Colada. I don't plan on eating the Banana Chocolate Chip bar again (I'd give it a 4 or 5 on a flavor scale of 1 to 10), but I quite like the Pomegranate bar, and I just bought 12 of them to tide me over before my Pilates classes.
The combination of the agave nectar (to keep your glycemic index low) and the Omega-3 fatty acids from the flax seeds make this an impressive nutritional choice. I bought them from AD American Diabetes, whose prices are good. They arrived in a couple of days, and I'm very satisfied. Try them out.