Which speakers to buy???

[Stereo99]

I am thinking of getting either the Kef's Q950's,large center,Q150's for surrounds,or getting the Martin Logan new Foundation F2's with matching center & surrounds..this system will be placed in a room that is 10.5 wide by 20.5 ft deep with 8' ft ceiling,driven by a Onkyo RZ 70 avr. Using a Paradigm DSP 3100 subwoofer for now. Wondering if those 2 choices are good ones?The store has a 30 return/exchange policy so no risk to me.For movies(40%),Music (60%)? But open to other speakers too....keep it in the 4k area of prices?? I live in Canada so that does limit me somewhat Thanks for the feedback in advance