Really nice high quality amplifiers:
http://www.coemaudio.com.au/
DIY Loudspeaker Kits:
http://www.theloudspeakerkit.com/
By the same guys awesome headphones:
http://headphones.com.au/
Kingrex T20U review (very in depth!):
http://www.6moons.com/audioreviews/king
The class T amps are my favourite ever, this one is similarly built to the one I made D with her speakers
And budget crazy (probably illegal) imports with free shipping:
http://dealextreme.com/
Hypnotoad says buy a Kingrex!