GamersGate, as per the above post (they are often quite slow, though).

Game.co.uk - it cost me AUD$55 (inc freight) to get it from the UK and around 6 days - much cheaper than any local retailer would be and it didn't take too long. In fact, I use GAME whenever I don't use Steam.

Dragon Age will probably be the first game I buy at local retail in years.