I second the recommendation for Beyerdynamic's DT-770. They are standard equipment in recording studios because of their superb sound, good isolation (they are

I second the recommendation for Beyerdynamic's DT-770. They are standard equipment in recording studios because of their superb sound, good isolation (they are what's called a closed design) and ruggedness. You can also get a lot of replacement parts, should they break (I doubt that they will in normal office use). I wear glasses and the "part of the glasses that goes to the ear" [what's that called?] fits below the earpads easily. One word of caution though: They are available with three distinct impedances (32Ω, 80Ω, 250Ω), and for usage with notebooks or an iPad I recommend the 32Ω version which is suitable for devices that have limited voltage available. I own the 250Ω version and for comfortable listening levels on my mobile phone (Samsung G S2) I have to crank up the volume all to the maximum. Of course that could also be considered a hearing-saving pressure level limit ;-).