Wiring choices and the entire realm of wire and cable is a very subjective issue. Bi wiring (and to some extent bi-amping) is a technique to "polish" an already good system. They will not be life altering in terms of the results ( although bi-amping can be considered a bigger step, with bigger payback). That being said,
Will it make a difference - most likely yes. Will it be big enough with current equipment to make a sound quality difference - maybe. Will the cost justify a "slight" upgrade - only your bank account can tell for sure.
Here is my suggestion:especially if you listen to audio at all -
1) I would purchase the 10g Monster for the main speakers (again, biwire is your decision)
2) Wire the others with 12-14 g (either Monster, or not - I would judge based on cost, but probably from Home Depot)
With savings from #2), you may be able to purchase enough Monster to play with the mains biwired!
Also, do not forget about quality (minimum gold plated spades or bananas) connectors.
Regards,
BBIBH
