Canon EOS 650D - Online, In-Store or Overseas

I'm thinking of getting a Canon 650D and did a search around online. Obviously the online stores are cheaper than in-store purchase. In the wake of the warranty issue brought up in this site in regards to the grip issue, I am just wondering if buying the camera online is better than in-store in terms of warranty, services and repairs. Also, if i do buy from an authorised seller overseas (Asia), would Canon Australia recognised its product?

To any DSLR users out there, is there any point in worrying about the after sales service?

Found selling 650 twin kit at $709.00 and i am a bit tempted. This is grey import? . *Edit - just realised this store is from Hong Kong

*Edit- Found another one which looks like a better deal - looks like from Australia? $914