Hello Fellow Aussie, I was looking for that site, thanx, not for teh supply, but because I had a printout, and some pages were missing, I was interested in teh buttons interface... Ahh, that powersupply.. hmm... It uses linear regulators.... waht system are you planning on running?? linear regs are too hot.. That circuit will only give 2 amps on teh 5volt rail, and 1 amp on teh 12volt..... won't it??? How did he run a Cyrix 333 off it then?? hmm... I think he REALLY should redraw his schematics.. lol well, if your on a budget, your best bet would probably be an inverter.... or, linear regs, but not many people have had any sucsess. . I am also on a budget, and could probably knock up a basic MP3 system for free..