Personally, I would stay away from Sazuma. Their prices are decent but they are very slow and they overcharge on every single order. It often takes several weeks and several e-mails to get the proper credit, and my last order (which will be my LAST order) never got properly credited.
This is a known problem there, and yet they continue to overcharge (blaming it on "exchange rates", even though I ordered in US funds). Judging from the e-mails I've received, it seems to be a amateurish, 2-man operation that is in way over their heads.