'Emerald Atlas' - John Stephens - first of a big fantasy trilogy with touches of Dark Materials, Narnia and Lemony Snicket
'Half Brother' - Kenneth Oppel - my personal favourite at the moment. The story of a chimp being raised as a human child.
'Trash' - Andy Mulligan - A teenage slumdog millionaire. The author based his story on the dumpsites of Manilla. Shortlisted for Redhouse. Controversially removed from Blue Peter Award because of a swear word (used entirely within context of the book.)
'Unhooking the Moon' - Gregory Hughes - A brother and sister's road trip across Canada and America to find family. Won the Booktrust Teen prize last year.
'Time Riders' - Alex Scarrow - new book recently out. Fantastic series - a mix of Doctor Who, history and The Terminator (but not so violent!)
'Johnny Swanson' - Eleanor Updale - a 1920's whodunnit for kids with a mix of Agatha Christie and 'The Apprentice.'
'Starcrossed' - Percy Jackson meets Twilight! (no vampires though)
'Department 19' - yes, there's vampires but it's more Dracula meets Alex Rider.
'Cosmic' - Frank Cottrell Boyce - more recent than new but definitely worth a read.
'Grace' and 'Once', 'Then' and 'Now' - Morris Gleitzman - the first is the story of a young girl's life within an extremist Christian sect - touching and humourous. The 'Once' trilogy is must read for any children with an interest in World War II - it's the step before 'Boy in the Striped Pyjamas.'
'My Sister Lives on the Mantlepiece' - a young boy's life is blighted by a tragedy which threatens to destory his family. So good and the audio is narratted by David Tennant!
Don't forget Michael Grant, Derek Landy, Charlie Higson, Sophie McKenzie - I could go on but I'll stop now.