The studio monitors are optimized for near field listening position, as such they don't sound good in a typical home setup and definitely not suited for HT use as they dont have much diffusion. Also unlike the legendary Yamaha NS-1000, most current studio monitors are not designed to handle high wattage.
There are some very good book shelf speakers from the likes of Pinnacle, Yamaha, Canton, Magnepan, MB Quart etc. suggest you give them a thorough audition.