Cable to emphasize midrange in Totem

Hi, I've got a pair of Totem Rainmakers and I'm trying to find some bi-wired speaker cables that will emphasize the midrange and possibly reduce a bit of harshness in the highs. At first I was considering some Kimber cables, 8TC or 12TC, but I emailed Kimber and they actually told me that these cables would worsen my situation if my speakers are sounding harsh at all, and that I should save my money and perhaps consider the cheaper 8PR or 8VS. However, research has led me to believe that while these cables do sound warm, it is perhaps at the cost of detail.

So, can anyone recommend me a pair of cables that are priced similarly to the 8TC's(or cheaper) that have a very lush midrange that could perhaps add a bit of warmth to my system yet while still retaining detail. Other qualities I'm looking for include spaciousness and imaging capability, musicality, separation, and perhaps above all else--just generally lifelike/realistic sounding instruments and vocals. Also, I would prefer it if the brand of cable was somewhat popular/easy to purchase online. Would anything from Cardas fit the bill? Thanks.