Anything anyone says is opinion on this one. Pay $$$$$ for big sound blocking super headphones and get exactly what you've already said in this thread you don't want.
I would go with sony ear buds (though I HATE the kind with the wrap around. The wrap around really annoys me and the regular kind stay in my ear just fine. Maybe it depends on your personal ear?
The sound quality is high in spite of the fact that they only cost about $20.
as for durability, mine have lasted a good long while, but really: get over it. With headphones, you have two options: really expensive that you take care of a baby like your child but will either break or be made obsolete in 5 years anyway, or disposable.
I consider most to be disposable. $20 every two years, or even once a year depending, is not too much to pay for decent sound and comfort.
Don't go for the $4 ones because they really do stink. The only headphones I've ever had just start to suck on me without anything physically breaking are the $4 ones and the free ones that come with ipod.
pay $20 and get medium quality ones. They're still not going to last forever, but you will get decent quality for a good while, provided you dont step on them, or tug the cord around too much.