Yeah, when I got the IE8s, everyone was saying it sounds good unamped. Sorry, but not really true. They are really hard to drive, I've used s:flo2, ipod video, ipod touch and sansa clip+, and all of them need to be close to max volume to sound any good.
I'm considering getting an iBasso T3D for the IE8s. A few people have this combo and seem to think it's pretty good. At least, good enough to tide me over until I can afford a better amp.... :)