Cable Arrangement Suggestions

Jwong1, the best suggestion that I can offer is that the further you can keep your AC power cords from your signal and speaker cables, the happier you will be.

As a rule I try to keep all speaker cables away from each other and from all the other cabling.

Also, as Liguy says, I try to keep power cables away from the rest. If other cables must come close, I strictly avoid parallel runs but try to make them cross the powercables at right angles only.

Interconnects seem to be less problematic. If I have to use long runs, I tend to keep them close together, however strictly away from speaker- or power cables. Also, if I have synthetic rugs ( real wool does not seem to matter)
I try to keep all cables off the floor.

I use small lengths of plumbing pipe jackets, the foam stuff for 1/2" pipes. cut into short lengths and slipped over the parts of wires that cross each other. Simple and cheap.

Yes, I follow all of Delof's guidelines and will stress the importence of keeping the left and right speakers cables as far apart from each other as possible, even when they are close to the amp.