I have actually never made it myself, just had it in Greek restaurants. Here are some recipes that I found online that might help you out:

* A traditional recipe (http://theodorakis.net/recipes/avgolemeno.html)
* The "fake" version -- ha ha! (http://theodorakis.net/recipes/fakeavgolemeno.html)
* The Food Network version (http://www.foodnetwork.com/food/recipes/recipe/0,1977,FOOD_9936_22123,00.html)
* And one more traditional recipe (http://www.tweeton.com/greek/recipes/avgolemono.htm)

You'll have to tell me how it comes out if you make it!