If you want to get a pair of headphones for studio use i would suggest getting some with a flat response, like beyer dt770 's or something similar. The sennhiesers are good for hifi repoduction but not for studio work as you will be hearing a coloured sound, a bit like using a good pair of hifi speakers as studio monitors i suppose.
I wouldnt choose a pair of headphones over a pair of speakers as you will find that bass & stereo imaging doesnt sound right coming from a headphone compaired to a pair of speakers.
as for prize, i would like a horses spleen or a right testical, just supprise me :lol: