I have been bitten by the upgrade bug once again, and I will be upgrading my AVR to a 7.1. Now I need to get some back surround speakers for this. My current setup has some cheap Wharfdale speakers for the surrounds. I saw these Axiom QS8s and everyone seems to like them. I was thinking of getting a pair of these and putting them where my surrounds are now (or is there a better spot?), and moving my current surrounds to the back.
Here is a pic of the layout of my HT room. I have shown the location where I would put the back surround speakers (direct fire) towards the front of the room? They would have to go up as close as possible to the ceiling as this is our main entrance. I can however place them anywhere along the wall above the closet doors as there is room.
Can anyone recomend this or another setup in my situation?

Thanks
Steve