they have great specs and are well regarded by some people who post regularly here.
I'd be worried more about paying too much for the same cables that every body else sells cheaper, or worse, for cube speakers worth not very damn much at all, than I would be about what you bought.
just don't panic if they need a little break in or moving around a little before they sound the way you want them to (I completely freaked when I got new Infinities that were so tight they made my teeth hurt... after a week they loosened up and now sound great).
I doubt you could have done any better without shelling out another two or three hundred dollars.
