AMAZON.CO.UK - "House MD" season 1-3, region 2 = AU$85.32
I've never had a problem playing Region 2 discs on my Region 4 player - no idea why. Can't testify this to be the case for all players, but so many people have multi-region models now anyway.
I just completed my House dvd collection from Ezy DVD, where the 3 seasons would cost $109.49 (without postage - whether you need to pay more for shipping depends on how much you spend of course). This is as cheap as I've seen the sets new in Australia.
The UK price for all three seasons is £41.97, but that drops to £35.72 for international orders (no tax). With shipping the total is £39.30, which today is AU$85.32. Will vary with exchange rate of course, but Amazon.co.uk has great pricing on a bunch of TV DVD box sets.
See next post for my screen shots to confirm pricing.