"But eBooks aren't the same as having a real book", I can hear some people saying already. Yeah, well. When you've been living out of a suitcase for 5 years, and travelling for up to 36 hours in one go, you get to appreciate a system that can hold a couple of hundred novels in something the size of a single hardback. If you're really insistant, get the ebooks anyway, but carry a few pages of a paperback round to fondle and sniff between chapters. ;)
Anyhow, A quick rundown of where to get them, and a couple of suggestions for reading them.