<font color='#000000'>Hey jrad13,
I don't have HDTV so I am not sure about how to hook it up so I will let someone else answer that but, If you want to best picture possible, use Compenent where ever you can. In terms of quality, component is the best followed by S-Video and then RCA. Remember, component is just for video. From your DVD player to your receiver you ALSO need an audio line. For your audio connections, use digital coax, optical (toslink) or even analog RCA plugs. Digital Coax and Optical are the best but this will be dependent on what your receiver and DVD player will accept. Many people use Digital Coax because it connects a little tighter and is generally cheaper than Optical. I use Optical, but optical in general has a loser conenction and is prone to come lose if in tight cramped spaces. Performance-wise, I think they are probably equal. Some may disagree.
By the way, the whole cost vs. perfomance issue with cables, also applies to speaker wire. Looks like you did good in terms of speaker wire. Some people use lamp cord for speaker wire and it works fine.
Shinerman</font>