I have made my own cables also. I used Cat 5 Chris VenHaus design for the speaker cables, 27 pair for the lows and 9 for the highs. I also made myslef a pair of long interconects to go between my pre and amps. You might want to check out these sites:
http://www.geocities.com/venhaus1/index.html
http://members.nbci.com/Jon_Risch/
http://members.tripod.com/beyond_gomer/
http://www.vacuumstate.com/cable_upd.htm
http://www.laventure.net/tourist/cables.htm
http://www.tnt-audio.com/clinica/tweaks.html
http://www.geocities.com/venhaus1/index.html
http://members.nbci.com/Jon_Risch/
http://members.tripod.com/beyond_gomer/
http://www.vacuumstate.com/cable_upd.htm
http://www.laventure.net/tourist/cables.htm
http://www.tnt-audio.com/clinica/tweaks.html