Ok, so this is a bit of a risk as it isn't out yet but through Stone Audio it is £295 - they say it will be available this week. They also have the 350 for £199. Considering in Sony store it is £250 I thought these were both good deals.
Admittedly I don't know what the official price of the 550 will be yet!
Admittedly I don't know what the official price of the 550 will be yet!