I would also suggest reading the user reviews for these recipes. They often have tips for changes to make or things to add.
This is the only meatloaf recipe I've ever made. I actually don't really like meatloaf outside of this recipe and my moms. For this recipe I use 1/2lb pork and 1lb beef. I also line my pan with bread prior to putting the meatloaf in. This helps to make the meatloaf less greasy. The pork makes such a difference in the flavor though!