Again, thanks for the nice comments - it's great to see that i am doing something people like...
FrenchyPilou : Thank you for the comment about the ShadowBox objects, but I completely disagree with your comment regarding Depth Of Field.
I feel that 'shallow' DOF does have a place in this type of subject matter, in this case - technical/mechanical objects. Have a look here :
To me, a 'photo-real' render should do what it says on the tin and that is to be as close to it's photographic counterpart as possible i.e. emualting a shot from a camera... Even the human eye uses an organic physical camera paradigm - or, maybe that only works when looking at non machanical objects
But hey, everything is subjective - and perhaps I did overdo the amount of de-focus...