if It is your surround speakers that are giving you the trouble then you can just get in the attic, drill a small hole down into the room and attach your speakers to the wall using shelves or speaker hooks or whatever you like. make sure you plan for future system though, so decide what you are going to buy and measure and make the shelves, hooks or whatever far enough away from the wall and ceiling to fit your new speakers. I too have a brand new home (moved in 3 months ago). I ran radio shack in wall speaker cable from a junction box behind the entertainment center, through the wall, up the wall, and down into the rear corners of the room. It looks/works great. Also, in an old apt I had I used the carpet trick, you usually can easily pull up the edges of your carpet and slide cabling underneath (so long as it is not too big).
-Casey