Thinking of buying one of those discrete speakers systems such as Sony DAV-S300, Pioneer NSDV55, Videologic Digitheatre etc. I already own a DVD so the former 2 would require me to sell it. Does anyone have any comments on these systems or indeed any of the speaker only packages? I see more and more appearing every month such as Haus. The size of the speakers must be small such as in the 1st two packages mentioned.