Most systems have optical inputs nowadays.
I have a Panasonic system installed in my living room, similar what has been suggested, which is ridiculously good! Also if you have a TV manufactured by Panasonic, you can work both from one remote.
In my bedroom I have the Pioneer/360 system. This was well worth the money and comes with 2x optical inputs. The only system I've seen with this!! So I have a PS3 using the other input. The
drawback is that this system isn't a 'home cinema' system as it lacks a DVD player.
Model # HTPGS1
http://www.google.co.uk/products?hl=en& ... &scoring=pGood luck finding a Pioneer set however
You'll be looking at £150+ for a system by the way.