I too am a keen wine drinker but, sadly, the Grange and St Henri are beyond my normal 'Yorkshire' budget.
Having said that I did manage to get a half case of D'arenberg Dead Arm Shiraz at a good price from Oddbins recently. Like Bionic, I too struggle to brave the opening of more expensive bottlesand also have quite a bit from the early 90s. Recently had a couple of Chateateauneuf du Papes '92 Beaucastel and '97 Grand Tinel - both were nice although the '92 (being a poorer year) was a litttle fragile.
FYO, one of the best Aussies that I've had in recent years was the Grant Burge Barrossa Shiraz C£13 - stunning.