Oh, good thread!
I'm reading the Song of Fire and Ice series by George R.R. Martin at the moment (Game of Thrones is the first book in the series) and it is AWESOME. Can't put it down at points, and as there are 6 hefty volumes in the series so far it should keep you going for a while (it is very readable though). Also loved the Hunger Games - I lost a week to that series! Other good things I've read recently include the Cloud Atlas by David Mitchell (new film of it out soon) and, if you want something diet relates, The Hungry Years: Confessions of a Food Addict, by William Leith. My mum raves about Hilary Mantel, so have got Wolf Hall and Bringing up Bodies lined up next.
Happy reading!