I can hardly believe that. When I bought my Scott Windriver (back in 1991 - equipped with 7 speed DX), Marin was in the running too but as far as I remember Bear Valley was lower-mid range (exage stuff). Maybe in 1992 they had some upgrade, I don't know.
Thank you very much mate, mine deffo is a '92, it came with DX parts originally according to the guy I've bought it from.