I don't know if they have vanilla powder, but for beans and extracts and cocoa and saffron (and, like, IDEK, four kinds of cinnamon at least, the likes of which they must serve in Nirvana--but be warned, you will never ever be able to go back to grocery store cinnamon again because it will be like, what is the point of cinnamon if it isn't this cinnamon), I have to point you at Penzeys (http://www.penzeys.com/).

My sister swears their Sandwich Sprinkle is a life changer, and I really like the BBQ 3000, but my favorite stuff is the baking spices: cinnamon, nutmeg, vanilla, anise, cloves. Going into their stores is almost overwhelming, they smell so good...I have to step outside and take deep breaths in between explorations.