I'd be interested in seeing how PCB etching works - or rather how to do it properly. I've made a few guitar effects pedals and have experimented with chemical etching but generally just made a mess and etched all the copper off.
Do you draw by hand onto the copper board or can you transfer from print outs? As I say I'd be interested to learn how it works.
(By the way - I'm the guy with the longish hair that came along for the first time in a while last Tuesday)