Well I have some Omni mounts that keep them off the wall and they would be mounted up high in the corners facing down. As far as a sub, I have 2 incredible DIY subs that shake the house. If I decided to go with the in walls, my budget would be around 1,000 for the set of 5. After thinking more about it, I think I will mount these speakers and see how it goes, if it works then I saved a grand. I will post some pics hopefully next week. I'm wiring everything next weekend and hopefully will have the media closet all together.
Thanks for your help.