i quite like my Sennheiser HD280 Pros. they have really great isolation (not quite in par with the EXTREME ISOLATION phones, but good enough. they probably sound better anyway). quite nice on planes if you don't need to sleep, as you can't lean your head into anything.

I just spent a butt load of dough on headphones yesterday:

1 pair of Extreme Isolation 25db
2 pairs of Audio Technica ATH-M40fs
1 pair of Audio Technica ATH-M50

The M50 pair sounds amazing. The best headphones I have heard.

I recently donated a pair of Sennheiser hd25 headphones somewhere and I have been bummed ever since. While trying to right the situation I think I went over board.

i got a pair of the sony mdr-nc60s last year and i'm very pleased with them. good bass, reasonably accurate for late night mixing when the ladyfriend is asleep. also, i really like that the cable on it is detachable - that's saved me from ruining a pair of good headphones at least a dozen times...