I am also a Sennheiser fan!
I'm also a Sennheiser fan and I'm getting th HD598 for gaming and watching movies.
Thanks for the rec i'll look into them.
First of I would like to thank everyone for their valuable input and suggestions.
In the past week since my previous headphones died, I've learnt more about headphone than I thought I ever would.
I have spent almost all my spare time learning about them, reading forum posts, watching reviews and so on.
I kind of want to buy all the ones mentioned in this thread. However I have narrowed it down to 2.
I decided that I would buy both of these, being:
Ultrasone HFI 780
and in a couple of weeks
V-MODA Crossfade M100
I hope anyone after the same sort of thing finds this thread useful.