i think that would work fine, as long as you dont end up getting a case of 'upgradeitis'.. the QS8's will work better in that space(for the sides) and if you go with the QS4's, you might always wonder "what if". and that is a horrible feeling. i think the M60's and 150 will be great, but consider the bigger QS8's for your surround.

just my $.02 cents worth..

bigjohn

EXCUSE ME, ARE YOU THE SINGING BUSH??