Sturdy sub - $50 in-ear headphones?

One set of headphones I think one should steer away from based on my experiences with them is the refurbished Monster Turbine headphones that sell for around $50. One headphone enthusiast recommended them to me and within a couple of days the back casing of one of the earphone got separated from the front driver. I returned it and got a replacement pretty quickly but then it happened again with that replacement pair. I was using these earbuds at work and would take them out and drop them on my desk periodically. I then got Skullcandy earbuds this time from TJ Maxx as well and they are holding up quite well.

I've got a pair of orange Sennheiser in-ear phones that are specifically made for running. They sound great for the price, stay put in your ears when your moving, and the cord has no microphonic effect. Sorry, I don't have the model number, but I think there are several good Sennheiser in-ear buds that would be good choices for you. Check out earphone solutions.com for a great selection.

NuForce has been introducing some cheaper models that might be worth a look.

got the Klipsch Image S3 and they sound great (way better than those shit apple earbuds). thanks everyone!