Even Wan Chai computer center is pretty good too - cheaper than Toys R Us... We use a place there called Mas Multimedia on the 2nd floor, phone 25911770 - her name is Cannie and she's really helpful, and speaks good english too if you need that.
If you shop at the Wanchai/Sham Shui Po computer centres, you can try the console before you buy it to check if it works OK. This is actually very common in HK...so don't be afraid to ask!