Currently using a pair of Sennheiser PX100s that I'm quite happy with but I'd like to upgrade. I'm looking for a set of headphones (preferably on-ear but I'm open to over-ear), wired, I like the sound you get with open backs but I'm prepared to give closed backs a try. They'll mostly be used for gaming (PS3) and movies (DVD). Ideally I'd like to spend around £50 but I' prepared to go up to £100 if needs be. I'm a little bit put off by Grados as I've heard they can be quite uncomfortable and I intend to wear these headphones for several hours at a time. The Creative Aurvana Live and iGrado Headphones seem quite popular. Whatever I end up getting I'd want to be able to hear a noticeable improvement over my PX100s.