Power cords

Warrenh: He isn't my friend in the business. He is a very knowledgeable owner of a middle/high end electronics repair shop who has done business there for many years. I think for that reason alone he probably has a clue. I read where some 'goners tend to agree that it is a gigantic waste of money. I guess what I am asking is: is there definitive proof that past a good reasonable power cord, can you make a difference? Can a cord be tested with any equipment to show that it is better? Thanks in advance.

Warrenh: appreciate the advice. I think you are right. I will try to borrow some PC from a local high end shop and see if I can hear a difference. Thanks, Gary.

Appreciate all the responses. I have come to the conclusion from all the feedback that the system I am putting together doesn't merit an expensive PC. I think $ for a decent tuner is money much better spent.