I'll second the recommendation for the Blue Jeans LC-1 interconnect, which I use throughout my system. I've become a big fan of their IC and speaker cables. That said, I own a Signal Cable Magic Power powercord, and it is extremely well-constructed, looks a bit more finished/polished/flashy than Blue Jeans, and makes a big difference in the performance of my system. Blue Jeans tends to be slightly cheaper and (in my mind) may be the better value.