$1000 worth. If he allows more than that, extra regulations kick in for US customers. MagicalTux (the site operator) has been known to raise limits on an individual basis for non-US customers. His email is email@example.com
. Keep in mind that he lives in Japan when you're waiting for him to respond.
As far as regulations are concerned, bitcoins are just a bunch of bits, and there should be no limit as to how many can be released daily. Right now you can't withdraw more than ~150 BTC per day, which is ridiculous.