Other than some of the old Quad sound spectaculars, most classical surround is hall effect in the rears. Although I always prefer to buy 5.1, I often prefer listening to them in 2ch. Ditto for Miles' Kind of Blue and Brubeck's Time Out. I like having the option to listen either way. And if I do want to listen to hall, I prefer to listen to the real hall reflections in the rears than synthesized ones.
All 2.0. ( i'm assuming, given the specs on FNAC ) but worth a punt if you haven't got the 5.1 releases, I suppose ?