Mark2410 posted a review of the Gemini HD IEMs. Sounds like the mids are fantastic.
Crabdog has a review of the Lyra IEM on Head-Fi. He believes these are a great entry point for budget minded folks.
Pros: Lightweight and comfortable, price, great treble
Cons: Bundled silicone tips, L & R markers
BloodyPenguin posted a review of the Gemini HD on Head-Fi. These are one of many newer IEMs which are now allowing you to “tune” your IEM sound using swappable filters. Unlike the Shure 846s where replacing the filters is a little involved, most of the recent swappable filter IEMs are much lower in cost and the filters are easily screwed on and off. From the reviews I have read most of the IEMs have one filter which works particularly well while the other filters either bloat one range or another or roll off the top end.