Where can I buy a Nipper 360 in London?

[catski]

I'm visiting the UK next week and would really like to check out a Nipper 360 (single). As I only have a few days in London I can't order online, and in any case would like to see it up close and personal before parting with my cash.

I'm staying around the richmond area but can obviously travel into neighbouring areas and into central London.

Anyone know of any stockists?

Thanks hatrick - they do indeed have an argos in richmond. Hope they don't mind me perusing it first before I buy!