I'll comment only on your choice of speaker cables, since they are easier to recommend. There has been a good deal of discussion on this forum about Alpha-Core Goertz MI2 speaker cables, and I think you should add them to your "short list". From personal experience, I think they are the most neutral cables I have had in my system, and they are also one of the less expensive (relative to high-end audio). For more info about these cables, search the Audiogon archives (try using the single word "zobel") and look for threads that include comments by our resident guru, Sean. You should also go to Alpha-Core's web site and read the technical commentary. Here's the link:
http://www.alphacore.com/goertz.htm
http://www.alphacore.com/goertz.htm