Barnes and Noble Nook Color/Colour eReader/tablet.
Has 8GB internal memory and takes micro-SD cards too.
Nook color tablet in excellent condition. This is a US device, but works just fine in UK.
This tablet runs a variant of Android, and it is easy to "root" to run more standard variants. In effect you can easily turn it into a standard Android tablet if you don't want the Nook software.
The screen on these tablets has to be seen to be believed - it is far more vivid than an iPad. The screen on this particular one is in perfect condition. The screen has been designed to be able to read in direct sunlight - and although its not as easy to read in direct light as a Kindle's real-ink screen, it is pretty good.
£40 including MyHermes courier.