Headphones!!!

[Eagles]

PITTM,
I just broke my headphones and I'm looking for a new pair. I'm willing to spend like $500 maybe a bit more but not much more.

I use my headphones mainly when playing internet poker, live poker, and just walking to and from class. I'm not the most careful person in the world so they will likely get banged up so I need a durable pair. As well I would like them to meet the following criteria.

Closed headphones, if they are semi-open its not really much of a problem but I basically just don't want my music to be heard by other people. Especially because I'll use them at the library and stuff.
I do not want ear buds or canal headphones because I find them uncomfortable.
I do not want anything that requires an amp/expensive sound card because I don't have any of that and I'm not looking on spending like 1k+ on this.