This is
below your price range but nearly as good as anything that you'll get within it anyway, so why waste your money?
http://www.argos.co.uk/static/Search/searchTerm/170%252F9032.htm
An extra fiver gets you a slightly bigger screen and more megapixels (but, unless you're planning on printing some really big pictures, you don't need them anyway):
http://www.argos.co.uk/static/Search/searchTerm/184%252F8979.htm
However it's worth noting that both of those cameras use 3 AAA batteries(as do many cheaper cameras). You might save money in the long run by buying a camera with a Li-ion (rechargeable) battery. If that's a requirement, this just squeezes into your budget:
http://www.argos.co.uk/static/Search/searchTerm/170%252F0347.htm
(The specification is roughly the same as my second link above except for the inclusion of that rechargeable battery).
Note that all three of those cameras are available in a range of colours, as shown in each of the links.