Tucker and Dale Vs Evil is a very fun horror comedy. Red State is alright. Eden Lake if you want something downbeat. Some good found footage films over on Azzys link there. Insidious is a good atmospheric ghosty story.
English and new huh? Well I like The Thing (2011), Apollo 18 (2011) and Scre4m (2011) which almost nobody likes. Insidious is also a good one. Forget Saw 3D. Paranormal Activity 3 (2011) is a good one too. I only put around the 2011 ones.