For speaker wire, the analysis plus 12 gauge blacks are awesome and you can get a deal from a dealer for around 300 for a pair. They are warm while still allowing high end detail to shine through.
I wouldn't be opposed to mixing manufacturers cables if I was you. In my experience, interconnects are way less impactful to a system than other cabling. I still rock mogami for mine after comparing to others and not feeling it was worth it.
Best of luck to you! If you can find a hifi dealer that will let you borrow cabling, this is by far the best way for you to decide what works well in YOUR system