Almost a year ago, I asked the same question, check this link:
http://www.synthzone.com/ubbs/Forum37/HTML/020699.html I got the Sony MDR 7506 for 90 Euros after putting a little pressure on the salesman. Amazon USA has them now for $84.95, a steal.
Satisfied ever since. Check my impressions here,
http://www.synthzone.com/ubbs/Forum37/HTML/020729.html what I write about the amplifier hiss I discovered is still true. Also check first, if you have large ears, their opening is somewhat small.
Ahh, another thing, we tried them out against an old AKG pair (don't remember exactly which, but there are lots of late 80's photos with Springsteen or others equally famous having them on while recording) and they were better.
As far as the ear pads are concerned, I read on the net that if the pads wear out on the Sonys, you can exchange them straight for some Beyerdynamic DT-250 VELOUR pads like these [img]http://t3.gstatic.com/images?q=tbn:ANd9GcRs6pQmX54OrjjmCIkZoxPd-ZRfomGkFS8b8E4WSxoi2ypbmrux[/img] and be comfortable.
[This message has been edited by trident (edited 12-21-2010).]