Any addon that shows me when i take a quest, where to go with coords?

There's a addon called Lightheaded witch works very well with the addon TomTom.
Go to http://www.wowinterface.com/downloads/info7017-LightHeaded.html to check it out. It's easy to use and places notes on your worldmap for easy access.

Try MobMap.

MobMap.de is the web site. Youll love it.

lightheaded in conjunction with cartographer works very well for me, clicking on coordinates sets a waypoint, telling you the direction to go, how far you are from it, and how long before you get there at your current speed and direction.

Try Questhelper http://wow.curse.com/downloads/details/9924/ By far the best if looking for a single quest addon. It also sugests order and routing for all quests and steps.