aeroguy, and everyone else that has posted, I appreciate the info you have given up to me. But now I have one more question....

If I use my Harman Kardon AVR7000 for the processor and purchase a 7500 to power the 5 speaker set up I have, what cables should I use? The speakers use single set banana plug ins (center channel and rears) and dual banana plugs on each of my front towers. None of these speakers have the balance jacks, so I am just using some copper monster cable wire right now. Is this a bad idea?