I'll check out your suggestions, Nyal, thank you.
jtwrace, I would like to start off with basic measurements, (subwoofer, CD test tones) but would like to get into something more advanced in the future (room measurements). Using my computer would be ideal, but I don't know where to start. My desktop is in an adjoining room, I would need a long mic cable (25') and probably a mic pre-amp?