One of my favourite brands Illamasqua. I used to use MAC.Only use the studio fix fluid as a underbase and the brush now + Koji Dolly wink eyeshadows #1.
So far I have the eyeliner cake + sealing gel, eye brow cake for definition, precision ink, sheer lipgloss, false eyelashes and brushes.
I have absolutely fallen in love with their Precision ink. It's waterproof, easy to apply and long lasting. I've always had a problem with eyeliners as they tend to smudge like MAC and make me look ridiculous but this, it's smudge free :] Simply amazing.