I don't think it would help the OP, the problem is in the shifters.
That might be right. Why did Sheldon Brown die soo young? He gave such really cool advisement.
For premature cablewear, figure it out. I personally like Sram on my road bike, but am really satisfied with Shimano LX/XT on my MTB. If you have to spend more money to get Ultergra, DA, or Sram or Campy do it.