I know I have a mix of payware and freeware here, but if I'm looking for the package that will allow me to easily understand as much as possible about my gear and listening room, including reflections, waterfall, etc. What would be the recommendation? Also would like it to have an effective means of calibration even for laptop sound "boards". Something that can effectively use cruder sound devices at first, while able to move eventually to like an ECM8000 or other high quality test hardware.