I doubt you'll need a high-gain distortion for post-hardcore, but since you're on a budget, how about saving up more until maybe around $85 and buying a Beta Aivin HM-200? It's a high-gain distortion pedal but it is very versatile, and has very powerful tone. Subversion has a review of it, you can find it in the reviews section. I own one and although I can actually afford something more 'prestigious', I don't see a need to upgrade. Definitely a pedal to consider, it's $85 brand new but you can find a few in the buy/sell section for perhaps $50-70 or so.
No offense to anyone, but it's easy for people to tell him to save up to SGD300-400. It is definitely a very big amount to save up. Some of us here just can't afford that. So lets leave out all the boutique stuff for now... At least until they're earning their own money and can afford to splurge.
The Boss DS-2 can also be considered. A little more gain than the DS-1, but also quite a bit more expensive, perhaps slightly over $100 brand new, so you might wanna check out the buy/sell section for good deals.