My Christmas present this year is an Amazon Kindle. I'm planning to use it a lot for reading pdfs from JSTOR and the like (as well as the handy pdfs of OCTs and Teubners you can get from archive.org). But is there anything else I really must have on it? Amazon.co.uk have some free philosophy editions - Hume's enquiries, for example - but I can't always tell whether the translations of, say, Plato and Aristotle are any good. I did buy Jowett's complete Plato for 72p, because I'm a real risk-taker like that. But are there any other bargains I should know about?