I would actually recommend
Redecoration over the mod mentioned above. You simply look at whatever item you want and then 'cast' the spell at it, it'll glow purple for a few seconds then you use the Insert, Home, Page up, Page Down, Delete and End keys to move it, then you hold shift plus the mentioned keys to rotate. You can even 'lock' items in place so they don't fall (but can still be picked up) for hanging weapons/shields/whatever else on the walls. I've decorated my entire house (Benirus Manor) with Redecoration and I love it. I don't have to worry about where I place items or how carefully I move (hey, mistakes happen!) for fear of knocking into something and send it flying across the room only to hit more of my preciously placed items! Besides, you can even move furniture with it.