Hi all, I am after some new over ear headphones and need some help. Currently have some Sennheiser HD595's which are getting a bit old and I have the upgrade itch. They will only be used connected to a PC using onboard sound. I heard these days the quality of sound from a PC is not too bad, is this the case? My budget is £300 max. I have done some research and these seem good: Grado SR325e Shure SRH1540 Any help welcome, thanks.