Guys, eggnog does not necessarily mean raw eggs! 
You can cook / pasteurize your homemade eggnog to kill off any possible salmonella (or whatever else) and feel good about it, and it does not affect the flavor! 
Now, I have read that clean, home-grown, healthy eggs like we all here on BYC have are far less likely to harbor anything unsafe, but if you are in doubt, just cook it!
My mom used to even [usually, not always] cook/heat the "custard" before making homemade ice cream.
Just google "cooked eggnog" and recipes abound! 
Here's one from Alton Brown:  
http://www.foodnetwork.com/recipes/alton-brown/eggnog-recipe2/index.html  This recipe says to heat the egg mixture to 160 degrees, then chill, and voila, safe, healthy eggnog!!!
This page from foodsafetly.org also says that heating the egg/milk mixture of homemade eggnog to 160 will kill salmonella:  
http://www.foodsafety.gov/blog/eggnog.html
Merry Eggnog and Happy Christmas!!!