I'm on a bit of a budget at the moment, but I'm curious what is currently a decent iPhone-compatible IEM (with in-line mic).  I was all set to get the ER7-MC3, but Amazon raised the sale price from $59 back up to $89.  Is there anything comparable in the $60 price range?  Amazon has been trying...

I've been going back and forth between the Etymotic Research ER7-MC3 and the Klipsch S4i.  I am looking for an IEM that will be compatible with my iPhone 4 and have an in-line microphone.  I went through quite a few pairs of JBuds (great customer service, not-so-great product) and then realized...