I would say the silver wires sound slightly cleaner and brighter than the regular hook up wires (copper). It comes down to your preference. I wouldn't be too concerned about the wires used inside ipod. However, I would focus more on the wires used for the LOD.
No problem. I started from knowing nothing about diy and then with help from this site and fellow head-fi'ers I took some baby steps and then kept going. Trust me the fun from diy is really worth it, and for me personally I begin to understand a little bit about audio.
If you are not aware,
here is the DIYmod thread.
Good luck and have fun.