..looking for some closed headphones under £100 to replace my dearly beloved Grado SR60's that have now been deemed too loud by my mrs

.
Heard good things on both of the models mentioned in the thread title, wondering if anyone has tried both and can give an opinion? I am not restricting myself to either/or so if any of you kind folk have any other recommendations I am..well...all ears. I would love to find a pair that could double for both home and on the go purposes but I fear this will be impossible, especially on my budget. I have seen a comparison between the SR60's and the Senn PX200's...surely they are not so close in quality that they are comparable, or are they?
Any opinions welcome
* Should also note I'm sniffing around the Beyer 231's but am a little concerned by the low price.