While I've been here in Sydney I've bought a huge amount of Aussie music. Stuff you just can't get in London.
Combat Wombat - Unsound $ystem seems to be a grouping within the Elefant Traks keiretsu. From my listens so far, I would say it's the best release on the label yet. Really quite serious, intense lyrically with tightly polished beats. Really impressive.
Prop - Small Craft Rough Sea is another brilliant soundscape type piece. Kind of like Tortoise and Godspeed! You Black Emperor, only I think better. Track 9 is an incredible xylophone number. The album is probably my fave from the buying spree. If you like some of the soundtracks by Philip Glass, I'd recommend checking these guys out. I'm going to try and hunt down their latest album now.
Hilltop Hoods - The Calling we saw these guys play at Cargo in London about a month ago, when it was snowing in London. Absolutely incredible live set, and the place was jammed to the rafters with happy Aussie hip-hop fans. Looks like there's good demand for Aussie hip-hop over there. Incredibly, the guys weren't financing their tour beer fund with merchandise sales, so I couldn't buy their album. Finally found it now, though their distributor needs to pull his finger out because I had to trawl through four shops to find it.