hey jutaylor,
you have picked up the right vibe in regards to nathan rd shops, steer clear. if something stuffs up, the warranty wont be there for you.
there are a few threads on this site regarding good legit dealers.. do a search using the search forums tab to the left of the screen..
try this thread too...
Anyone know the price of a Canon 20D in HK?
there are a few more popular places, one from memory was coxell's booth on HK side, also a few in stanley st. apart from stanley st, i haven't been to these places yet, as all i can do is window shop at present

and it just makes me feel bad to see these cool toys that i can't get my hands on yet...
but yes, do avoid nathan rd. the prices are great... as the saying goes, if it looks too good to be true... you know the rest...