Amazon one of the UK’s most well known online retailers are nearly always the cheapest online retailer when it comes to Xbox 360 consoles. If they are not and a good deal comes along from another online retailer it is usually only a matter of time before they at least match the offer or sometimes beat it.
You can also be sure that when shopping with Amazon that you will get quick delivery and good customer service, two of the main reasons they are where they are today.