There's a post here recommending pokersupplies.com and I can vouch for them. I have bought five sets of 300 chips, 11.5 gram diced sets, in metal cases, with Kem cards. These were gifts for my friends. They came right away, the price was right and when there is a delay, he always sends an e-mail explaining what he's doing. I think he's on the cover of
Candian Poker Player so you can read about the business. He is also expanding into table felts and other stuff which is good because I want to build a room.