Alright, thanks guys, my mom made the decision before me

and got my the Shure E2c's. They are very much worth the price. My first impression of it was that it sounded like absolute #### (I'm not holding anything back on this). Honestly. No bass, no highs...just, mids. WTF? But I remembered my experience with my Sennheiser PX200's and breaking in to sound good. So I fed them music for about 3-4 hours or so, and took another listen.
OMG.
The highs opened up, finally shaking off the 'veil' they seemed to be hiding behind. The highs are loud enough so you can tell they're there, yet not too loud so that 's' sounds and cymbals aren't deafeningly sharp. (like slicing into your ear sharp...HD212's had that problem a bit.) The bass flowed out much, much deeper, yet still remaining relatively 'tight'. (not as tight as my HD212's, but those are hideous to go out in public with, hahaha)
The mids are alright, although I do think the mid-bass is accented a tiny, tiny bit too loud. But the other feature on here is isolation, holy crap, it's a great feeling to be inside your own little bubble. Silence in the music IS silent. I have a feeling that the sound quality will only get better as I use it (break it in more).
I also have a feeling that the ER-6 would have been the better buy, since I'm more of an 'analytical' listener, I like to hear details. My Senn HD212's provide that for me at home, but the Shures are GREAT for on-the-go listening. It's a great upgrade from the Sennheiser PX-200's.
And a GODSENT upgrade from the Koss Plugs, but hey, that's not even in this CLASS.
Alright, that's it, this is the last pair I'm buying/saving up for/getting as a gift until next year. iPodding is an expensive hobby, first the iPod, then the case, then headphones, headphones, earphones, etc. Hell, at this rate, I'll have bought Etymotics before I saved up for my damned car!!
DAMN YOU APPLE! hahaha...again, thanks for your advice guys. Always helpful to have a nice community around.