Today I'm wearing Hi-Def from the Hi-Definition nail colour collection by Sally Hansen. It's a bright apply green, almost neon like but not as it's much more wearable. It's quite sheer and I needed about 3-4 coats before my nail line became less visible, other than that it applies really smoothly. I guess my only complaint is that it actually take a while to dry.
Sadly I don't think these polishes are available in the UK.