it is waaaaaaay cheaper to buy australian wine in Australia than in SG. in SG shops jack up the price even after currency conversion and tax addition.
shiraz spicy? hardly. it's a fruit a bomb, good shiraz has an awesome fruit component, usually of blackcurrant and cassis and depending on the style, it has a full body and lush feel in the mouth, supported by an oak or earthy structure.
while i would recommend you a Penfolds Grange wine, but those start at a few hundred AU up to 2K+AU, but it's obviously out of your league. Penfolds is the premium label in australia, rivalling those top french bordeaux. That was why i recommended Penfolds Bin 389 which is said to be a 'poor man's Grange' because of components of the bin 389 wine is matured in the same barrels that held the previous years Grange wine, and taste excellent as well.
As for the Bin 389, it's a Cabernet Sauvignon & Shiraz blend and is more than worth it at this price. I saw a Bin 389 in the Cold Storage premium section selling at a little over 100SGD.
Les Amis brings in very nice wine, but there is always a markup. The best is you purchase them at the country of origin.