Can i Share my exp when i was in HK to get my gears? (i am an alpha user) not sure how useful it will be, but here goes:
I got myself:
1. 70200G (dcfever, 3rd floor of星際

2. joby gorrilapod (天祥)
3. ballhead (dcfever)
4. 1 battery for A55 (永成

5. cloth for cleaning (dcfever)
6. SONY Carlzeiss MC protector (SONY STYLE)
Above are my "loots", after walked in and out for about ~20 shops at mongkok, 尖沙嘴, 中环, 铜锣湾. I asked for price, and asked for discount too (including some "neon light shop" that this thread recommend not to go --- tried 2 shops only lar, coz i scare later ppl beat me for not buying .. ha ).
I always take the last recommendation of CSTAN in mind --- While visiting HK, don't just spend all your time looking for camera gears, take time to try out different kinds of food in HK. and all that I did, getting quotes, and searching for money changer are done in by the way mode
What i wanna say are
1. Those shops like 天祥, dcfever, 永成
they have few branches within the same area, or at other areas. U do not need to go in everyone of them --- they will quote u the same price (before bargain). Unless u wan to bargain or u know somebody in the shop, the price should be the same through the same brand of shop. So far, dcfever quoted me the cheapest.
2. If u wanna bring cash there, pls be reminded that the exchange rate are very different in hk from shops to shops (money changer). I had walked to at least 20 money exchangers whenever I pass by 1 along the streets. Their rate (for the past 1 week) varying from 4.4 HKD to 1 SGD to 5.8HKD to 1 SGD. The highest rate I got is at铜锣湾, opposite the exit of MTR (opposite SOGO building). With the exit of the MTR station at ur back, the money changer is at 11o clock of u (or 10.30). I change my money there, and then went back to mongkok dcfever.
3. If u wanna buy memory cards, dun buy at永成 or天祥. Instead go to星際, its like a small sim lim square, and the price for the memory cards are usually cheaper (for eg. If 永成 selling at 770 HKD, u can get 690 HKD @ 星際

. The prices are stated on the products itself, so u do not really need to ask for it.
4. Dun be afraid to walk into the shops at 星際 although they look small and a bit messy, all the shops, restaurant i went to have very nice and polite ppl. Just say THANK YOU if u dun intend to buy, or u need more time to consider --- just tell them u need to think think again
. Mostly customers are the rude ones --- for the 1 week duration I was there, this is what I observed.
5. After u got ur stuff, walk to the sony center at the address mentioned in the start of this thread. The sony center is just opposite the exit (D2) of the mongkok MTR station. When u stand at the exit, u should be at a Junction, look for CITIBANK. Then talk towards it. The sony is at the 9th floor of that building. U can see CITIbank and FORTRESS signboard on the building. When u at the sony service center, the process is very very simple, just bring ur stuff and receipt there, the ppl there will giv u an ADDITIONAL card, thats all. Keep the receipt and the card.
Thanks for reading the long msg... ha