Amazon Kindle

I've got the £30 leather case- works very well, I don't worry about the kindle getting knocked about, and I can use the elastic band thingie to strap the kindle to my hand when standing on the train and holding on with my other hand.

£30 for a leather case is one thing £25 for a neoprene case takes the piss.

I got this - not cheap but it's nice and fluffy inside.
http://www.amazon.co.uk/Neoprene-Kindle-Sleeve-Display-Generation...