Hi Fred- Well there are many many fine cables out there. Do you have a local retailer that carries stuff you could take home and try, just to get a feel for the possibilities? I would borrow interconnects and speaker cables at the same time to try.
On the low-to-midrange price range, people like Audience AU24's, which are also thin and easy to negotiatie around tight bends. I had a set for a long time, and they are a VERY good value. I also owned Cardas Golden reference and Golden cross, Nordost Valhalla and several others, and auditioned Kubala-Sosna Emotion, and so far nothing beats my current reference stereovox cables, which of course cost a butt-load of $$. Of all these, the Audience AU24 is a nice start, and very affordable.
However, BY NO MEANS amd I a cable guru, as there is so much out there I've never heard (Kimber, Tara, Transparent, MIT, Ridge Street, Synergistic Research, Analysis Plus, Purist, Acoustic Zen, Stealth, Wireworld, and so on ....the list is seemingly endless), so get to a local retailer or hook up with a local audiophile and TRY whatever they got.
Good luck and above all, HAVE FUN! Art