This has nothing to do with virtual synths, but I do not think anyone will mind. I have a limited budget set aside to add to my modular synth, and in the effort to stretch my dollar as far as it can go, I have been investigating some of the DIY module kits. What equipment is needed to put this stuff together efficiently? I have a nice soldering iron, but since I have never messed with building synthesizer modules and it has been ages since I have messed with circuit boards, I want to make sure I know what I am getting myself into. I am assuming that I will need some way to test the board to make sure everything works. Any suggested resources, equipment, and vendors for me to look at?