I purchased a really useful DVD last week! Its called "The Ultimate DVD Surround Sampler and 5.1 set-up disk". It is made by Chesky Records (Chesky.Com). I don't have rear speakers yet, saving up for them. So, I haven't gone through the entire set up process yet. There is a rattle test that surprised me! If anything is going to rattle in your HT room or wherever IT WILL FIND IT! WOW! It seems like it will be easy to use when I actually sit down and calibrate.

Like the other guys said, nothing is set in stone. Feel free to tweek away. Its important to get the reference point first.

This DVD can also be found at AudioAdvisor.Com

Oh, if you have a SACD capable player (I don't have one yet)try "Dr. Chesky & His Band of Maniacs - Dr. Chesky's Musical 5.1 Surround Show"! It looks really interesting it might be really fun! Found at Chesky.com as well.

Mike