Lim Chi Yuung :
hmm, how about some good PSU in 550W to 650W range lower than RM 220 (220 MYR). i know that doesn't sound easy match but that's my budget =p
where are you from? why do you think that pc hardware in Malaysia is cheaper? pc hardware in Malaysia is mostly imported though.
I live in Mauritius. I have someone that can bring things for me from Malaysia. Some things are around the same price, but others are much cheaper, like CPUs and motherboards.
Anyway, at RM220 is difficult to find a quality unit. There is the Silverstone Strider Essential 500W at around RM220-230. I don't remember seeing any Corsair CX series. Not sure if it is available. Both are good for a basic gaming system.
Both are reliable units. If you can step up your budget, you'll find the Seasonic S12II 620W for around RM300. That's a unit that will last you.