[quote name='rudeboie']Awesome, I'm going to HK at the end of April. Hope to see some cool stuff

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rudeboie, you can also try the Wanchai Computer Center (anyone and everyone knows it in Hong Kong - it's even in Wikipedia). It's pretty close to the Oriental 188 shopping mall that flyworld3 mentioned, about 5-10 minutes away by foot.
There are three main game shops there that sell games and peripherals (plus a high-end one that sells loads of PC gear). I picked up Red Alert 3 about 2 weeks ago; the game came with a T-shirt and a 2GB USB stick. Pretty cool. The bundle cost me USD12.50 (98HKD).
You are bound to find great deals here in Hong Kong. Since it's so easy to get pirated games, publishers often add value by including extras to sweeten the deal.
Another example is the EA Experience (you have to take the Peak Tram to get there). I picked up Spore Creature Creator when it was just released for something like 11USD which is about right, but they also let me choose a keychain, a lapel and a skin for my PSP.
Finally, you should still take a trip to Shamshuipo (that's in Kowloon) and better deals or not, check out Dragon Computer Center and Golden Computer Center (look for the Dragon and Golden Computer Center exit signs in the Shamshuipo subway stop - again, anyone and everyone who lives in Hong Kong knows these places). You are bound to be entertained by the plethora of console and PC hardware and software, gray market / parallel import items, second-hand items and collectibles (you can also find similar in Oriental 188 but hey, Hong Kong is a small city and it takes you about 20 minutes by subway to go from one place to another).
Anyhow, good luck and happy shopping.