I am setting up an entry level home theatre system. I have lined up the Q Acoustic 3010 package locally for $2000, but found it on Amazon for $1000 (nzd) less. I realise I would have to pay GST etc after shipping from my youshop address. My question is would there be major differences in the American product that would cause issues when I try to connect everything up? Is it worth the trouble? Have others bought similar items from Amazon?