I build all my own electrical cables (can't make my own optical cables yet). I use either Canare or Mogami cable, and always use solder terminations for my audio cabling, and crimp for my video and F connectors. I'm an excellent solderer. I don't heat shrink the ends though. I use RCA's with spring strain reliefs. Get all of my cable and connectors through BTX or sometimes Parts Express. I just finished a new custom RGB cable from my projector to my DVD player. Custom cabling is very easy, take your time though, make sure you do it right. The Canare true 75 ohm RCA's and F connectors are the best for video and coax digital. Expensive, but well worth it. Welcome to the custom cabling world...you'll be surprised at how proud of yourself you can be when you finish a big custom cabling job.