sooo much fun!
I agree with Cara, baby clothes are so much fun to shop for that I have to hold myself back everytime I see cute clothes. I initially bought only a few items for my boy when he was a newborn. Most of his clothes were gifts and some he grew out of at 3-4 months! I buy his clothes at Fa Yuen, Stanley and Lion Rock Rd in Kowloon City. You'll find brand name stuff like Gymboree, Gap, Carter's, Osh Kosh at these markets.
However, when I went back to N. America over the summer I bought alot too just because it was easier to walk into a store and just buy (pro). But the prices could never compare to the prices here in HK. Although, in HK you need to 'search' for what you want (con).
Now, I forbid myself to shop for anymore clothes because my son is growing out of them so quickly....yikes! Btw, went to ocean terminal the other day, Gap and Banana Republic are no longer there.
The best selection of Baby Gap is at the market in Stanley. (labels are usually cut off but you can tell it's Gap)