I generally use jungle for consumables like CDRs, Ink and Paper, they are generaly quite good for it really, and you know you are buying good quality stuff. Their delivery is good, if a little slow at times, but over all I am quite satisfied with them.
I always do a fair bit of searching around to find the best deal, but I often settle on Jungle because unlike most other stores they always have what I want in stock, which I what I like to hear.