Once I finish this semester I am going to build an ATX-840av power adapter for a friend. Instead of using prefboard I would like to make a custom PCB. I figure that since the adapter won't need very fine traces it would be a good project to learn on. I read some about products that allow you print the layout on a laser printer and then iron it onto the board and then etch it. I was also thinking of just getting an etch resist pen and doing the layout manually. Does any one have an experience either way and have some wisdom to pass along.
Also from what I understand now day most PCBs are machined. Do they just use a standard CNC router with a really small bit?