Nikon D3100 and Tamron 18-270mm (B008)

hi guys, I am looking for a D3100 and a Tamron 18-270mm (B008) not the old model B003. I don't mind grey items as I think they are the same as Aus' product but warranty is with HK only. So far, I can only find the cheapest is at Duty Free Centre ($1,031.94). Others like Citywide gave me discount at $1,040 (after a series of email) and gLobal is $1,078. Please help…