Uuuuuuuh many options, haha! The IEM market has EXPLODED with variety. I recommend poking around Head-Fi.org or looking for a blog that does IEM reviews. NuForce makes higher end IEMs (EDC3) if you like your EDC and you just want something more refined, my Etymotics have had AMAZING detail and linearity (they just had a drop here), Audio Technica makes good stuff with good reviews (though personally I have only tried their over-ear headphones)...