Great headphones, cheap and good quality!?

I'm looking for great headphones, probably in a solid 50 dollar range, maybe 10 higher, that's about it. I want good sound quality, as good as I can get as well as build quality, something that will last. I'm aiming for in the ear. Klipsch makes Image S4 headphones that are superb, but a tad expensive and I'm wondering if POSSIBLY I can get something cheaper with just as good quality!? Anybody that can help would be my savior.