All other DS lite consoles sold instore are bundled with one game, priced at £119.95, but white coloured (possibly other colours too, see update) DS lite consoles without a game in the box are £70. There were 1 or 2 left in Staines Homeplus, but potentially more out the back like normal. Be sure to ask Customer Services. Receipt picture in the next post.
The stock check telephone number is 0800 50 55 55, but, from experience, this isn't always 100% correct. Phoning individual stores and getting them to stock check for you can be worth the hassle.
This colour doesn't seem to be available in many places online, but GAME.co.uk have white consoles new for £99.99 :http://tinyurl.com/nmoy2l
Amazon only have white ones used for 59.99, other colours are £99.99:http://tinyurl.com/m27osa
Play have white coloured DS lites used, again, from 62.95, new in other colours for £99.99:http://tinyurl.com/c3z643
CEX sell white ones used and unboxed for £70:http://tinyurl.com/l6k3kn
Google shopping can't find any better deals:http://tinyurl.com/nnyw59
Not bad for my first deal post? :D