The most popular markings are the TCE markings made by Ouka. but there's also a pack called Markings Pack 3 or something in those lines, I'm sure you can google your way to that.
I, myself, run around with Ouka's.
Here (http://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=21635.0) is a tutorial made by Ingredient. But if you find it easier to see how it's done step by step, here (https://www.youtube.com/watch?v=TrQEh_UKesc) is a video made by someone unknown to me, of how to get them to work. (I know it says Vista but it's pretty much the same on any computer.
If you have any further questions, feel free to PM me.