I haven't found DaVinci syrups, but I have found Torani syrup (sweetened with Splenda). The Bay has a pretty good selection for a decent price. The small bottles are 6.95.
I bought the gold card at GNC on the weekend. You pay 15$ per year and save a decent amount on their products. I picked up banana nut muffin mixes on special for 5.19. The first week of the month you save 20% when you are a gold member. I agree some of their stuff seems expensive, but there are some deals to be found and they do have a wide selection (at least the South Edmonton Common location did).
Someone also told me they saw Protein Platters at local McDonalds.