Headset for life
Ian,
If you're looking to go to me/ir I'm assuming you're going into this for the long haul, no pun intended.
Don't skimp. Get a good, comfortable headset you can use for hours.
I've always used DC, and they will last, and last, and for the extra £ over your budget (less than an extra hour of flight) you could get a H10-20 or (my preference) H10-60.
Just my opinion
Happy landings