Comment Home networking... how brave are you? (Score 1) 315
When I moved into my new (OK, old, but new to me) domicile, I had the home entertainment system in one room, computer room, a few cams here and there, coax spread everywhere... Apart from the coax, I knew I wanted connectivity of varying sorts running here and there, so I ran multiple lengths of CAT5e between two 66-blocks placed in strategic locations. Those are the telco-style punch-down style blocks you see in the phone closets at work... anyhow, it leaves an easy way to add/reassign cable lengths and also to run additional lengths of cable for audio and signal I/O.
In terms of where, try to give clearance around florescent lights and anything else that uses strong waveforms and hot ramped-up current (vent motors, etc.) Shielding is obviously something to shoot for.