Headphones advice

[Floyddroid]

Can any of the headphone aficionado's here advise me with regards to acquiring some new (inexpensive ) headphones? I am not a full on headphone user and only use them for late night listening with a turntable via a Little dot valve headphone amplifier. I have a pair of Grado Prestige SR225 which are excellent for monitoring detail etc as you can hear a blue bottle fart from 500 yards through them. No good for protracted listening as i am finding them a little fierce when used will my present set up and would prefer something with a little smoother balance. Any ideas chaps?