I commend you on your persistence to learn a new skill. However, learning via a newsgroup how to do everything electrical scares the bejeesus out of me. Sure, I ask some clarifying code type questions here and there but I also worked as an electrical apprentice years ago so have an idea of at least how things work etc... Be Careful! It can't hurt to ask some friends who know this stuff to inspect your work. One question though. You mention that HD didn't have 12 ga in anything other than black. Are you indicating that you are using single strands of wire through some sort of conduit or raceway? If not, and you're just stringing the individual wires along inside the wall, you're violating code as far as I know. Wires need some form of protection be it EMT, etc... For residential the most common is NM cable (Romex) where the sheath is considered it's protection. Cheers, cc