Need very quick answer please (ie7 related)

Hi all,

I've decided that I'll gonna get me ie7. However I do have one important question. I like to work out while listening to a music, and since ie7's cable isn't replaceable I thought I must ask whether it's suitable for working out or not. How's the cable against sweat? And is there any cable noise when I run?

Last, I'm jumping from klipsch s4, will I be able to hear an improvement?

Thanks a lot in advance for any replies!