I would discard the interconnects that come with products (with the exception of the power cord)and buy some that are in the $10-20 range. I would argue this benefit. Anything above this in my opinion is wasting your money. I normally use Acoustic Research Pro series cables for everything. They are pretty cheap:

http://www.buy.com/prod/Acoustic_Researc...1/90130165.html

and perform very well. I would argue with anyone wanting to spend more than this on cables the laws of diminishing returns. Snake oil is abound in the cabling industry.