Aussie price - Sigma 19mm f/2.8
^ B&H are a bit painful to deal with from Oz unless you have a work credit card since both the billing and shipping addresses must be the same (if outside the USA) and they will only send stuff by UPS, not mail. This means you cannot get anything sent to a PO box (or an unattended residential address), and few people's credit cards are likely to have billing addresses at a shopfront - unless they own the shop.
Since Digidirect are close to me and the price difference for two lenses once B&H's freight is considered is about $30-40 - not factoring in the hassle factor - they're going to get my business! BTW, Digidirect also have the 30mm lens at the same price as the 19mm.