Best plce I find for makeup advise is here:-
www.makeupadvicemessageboard.co.uk/forum/index.php
They are pro makeup artists very friendly and helpful ;-)
Urban Decay do a good range of glitter eyeliners i lost mine on a night out however you can use Mac Pigments with a wet eyeliner brush as well they do a whole range of glitter shades..
Sam the lady who runs the makeup website sells pigment samples I have about 30 different colours now you can use them as eyeliners or eye shadows I think they rock as they are very long lasting
HTH