Here's another topic for consideration. What are you monitoring/mixing on, and do you have a sub as well? Any favorites? (Any LEAST favorites?) Is there any kind of standard you work from? What about low-end, and subwoofer bass management? Do you address that at all, and if so, what is your real-world reference? (Existing recordings - Commercial or otherwise, Test CDs, etc.) Stereo? 5.1?