The Orb are well reviewed, as are the Gallo round speakers, although I haven't had the chance to listen to either.
Other options might be the Energy RC mini which I have heard and liked.
All the above should probably be used with a subwoofer for best performance, a la the Bose systems.
If you don't want a sub, the Era design 4 is one of, if not the, sweetest sounding small speaker I've heard and you could, if you wanted, get away using just these without a sub. The fine finish on these should score high in the WAF. Don't look at the Era design 3. If that's the way you'd like to go, get the RC mini instead.