Well Guys...it appears that the answer to my question is probably the most intuitive one after all.

...as y'all pointed out...thanx.

(and, I did even more googling last night, too!)

16 or 18 ga wire is probably OK to run; but since speaker wire can very well be the cheapest parts of our system, why not go with what we like and works best for our individual situations?

Sure.

If our equipment is exposed to the public and all the wires are visible,(or even if it's not...) then we can use real purrdy, big and colorfull wires if we want to! How cool is that?

Wanna make a design statement? Now's our chance! Can even go with those "Boutique" wires if we want to!

Or the old extension cord with the broken plug; hey,..it appears the electrons just don't care!

...and OFC's not that important!....who knew!

Freedom.....gotta luv it!!
Rich.