Make Up For Ever. Gorgeous bright matte shadows. Much smoother than MAC's, too. You'll want to look at #92 (very, very popular purple - with good reason!), #75 (hot pink), #72 (turquoise), #2 (yellow) and others!
i don't know about mac but if you have Inglot in your area you have to check their matte eyeshadows , they have dark, neutral and bright colors and they are gorgeous .