Good ipod headphones replacment for UNDER 100$

Hi,

i broke my ipod headphones a couple weeks ago and don't want to pay for a new pair. I'm ready to pay between 50-100$ for better ones.

Now my question is, what is the difference between in-ear headphones:

http://reviews.cnet.com/headphones/k...-33577358.html

or, ipod-like headphones (doesn't go into the ear as much) :
 

Amazon.com: Yuin Pk2 Earphones: Electronics

What's the difference in terms of sound, comfort?

And if you could tell me wich heaphones would be the best in my price range (0-100$) it would be appreciated. Does the earphones i put as examples are good ones?

Thanks and sorry for my english....