I currently have some sennheiser momentum on ear headphones which I mainly use for gaming and general pc use with a bit of music listening thrown in. I like the sound quality but they are uncomfortable for long sessions. I bought them because they were very cheap and I liked the style. I didn't really do my research Ok, so I'd like something that really fits what I am using them for and I'm prepared to pay a bit more this time, £300 absolute tops, but preferably less. I'd like something comfortable, good sound quality suitable for my usage and nice build quality / materials. Any recommendations?