Brown eyes here as well and I love purples, blues, and greens.
blues - deep truth, electric eel, clear sky blue pigment (love this! it's the perfect Tiffany blue)
purples - parfait amour, french violet and violet pigment. I really wish mac would come out with a more intense purple. Using the purple paint underneath helps.
greens - humid for an intense look, greensmoke for a more neutral look. also love the green piggies - teal, emerald green, landscape green, and forest green.
Also, for a hot, smokey, sort of Egyptian-kinda look, I like to use Nars Nightclubbing e/s (black w/ gold flecks) with amber lights. Gorgeous on brown eyes!!