For the few Aussies on here, there's a guy who's doing a 2 day workshop on building and designing valve amps which includes building a 15w amp. I'm totally gonna jump on board as it's right around my birthday and building amps has been one of my highest priorities on my list of things to learn. Hell, for $500 it's worth it for the price of the amp alone.
Amp School | Valve Heaven
looking where that guy his building is amp in...it will taste good at least!