I used some very small, round raceways that were barely larger than the speaker wire. Painted them the color of the wall and they look great!

Here is something similar to what I bought:
http://www.amazon.com/Wiremold-White-Cordmate-Channel-C10/dp/B000BVXW08/ref=pd_bxgy_hi_img_b

pictures here:
http://www.axiomaudio.com/boards/ubbthreads.php?ubb=showflat&Number=189940&fpart=1

I don't think they have been painted in the first pictures of the thread.. maybe later on in the thread though.

Also I hung the QS speakers by myself and I stuck the raceways to the wall before I decided the QS8's needed to be raised a few inches... as a result there is a bit of speaker wire that shows between the top of the raceway and the speaker. If I did it again I would make sure that the raceway is flush against the speaker... hmmm maybe I will buy an extra one and cut it to fit \:\)

-David