Clean Power

Here's a question I hope somebody can answer. I'm currently rebuilding all of my power cords with Wattgate audio grade (blue-star) IEC connectors and plugs and cable from VH Audio. I also want to run a dedicated line from the breaker box in the basement to the living room for the system. I want to use a hospital grade (green-dot) recepticle for this. I need to run about 60-70 feet for this.
If I'm taking the time to get quality cables and connectors I want to do it right. What do I run from the breaker box to the living room? I'm sure there is something better than getting "Romex" from the hardware store. I want to minimize the weak links so I really could use some help. I thought about running 10-2 or 12-2 in metal conduit and running an isolated ground outside the conduit but I don't know if that would do anything for me. Is there anything that is worth the work?
Currently I'm not using any line conditioners, but thats going to change soon. Does anyone have any suggestions on what to do? Are there any breakers that work better than others for audio applications?
I am using Martin Logan CLSIIs, Chiro reciever by Kinergetics, Luxman CD player and a VPI turntable with a Grado cartridge. Only a small part on my listening is for home theater. After all, I'm only using a 2-channel system