Thanks to you guys for your help so far. And Jtinn thanks for your suggestion on the PARC unit. I will look into that. After re-reading my post, I realize that the midbass hump has more to do with the room and speakers and that cables should not be used as a tuning device. Unfortunately short of creating a dedicated listening room, I will have to make do with the room my equipment is in.
Cables are very subjective but I know many people have quite a deal of experience with different cable manufacturers and my intent is to garner as many opinions as possible to narrow down my search. Its also fun to try and search for audio nirvana at the same time (albiet expensive). But my dream system is becoming a reality as I've worked hard to afford my equipment so far. I've flirted with the idea of purchasing a used pair of Nordost Valhalla's but can't quite bring myself to do it yet. Maybe someday. For now, my intent is to find cables that are not outrageously expensive but allow me to catch a glimpse of musical truth. Again many thanks for the suggestions so far and I welcome any others with opinions and comments!