Can you guys tell me a hair mod and face mod to make my dark elf look cool?

...sigh...
You do realize that every mod site has a Search Function. These allow you to find mods yourself, instead of always asking the forum.
Also... what do you consider "cool" ??

http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=6667 combined with the http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=6173 will give you many options for all Races. You should be able to find something you like in there.