A Packer fan living in Phoenix needs ALL the help we can give him. Thanks folks.
Congratulations on your new 85G. It is a great focal length for portraits. I don't own the latest and greatest at that length but the venerable 85 f/1.4D deserves its reputation as the "Cream Machine." For more formal portrait shooting I'm inclined to go with a 105mm lens but that can be a bit tight for casual shooting you describe. In fact, I do portrait work almost exclusively with MF glass which certainly isn't optimal for tracking kids running around the yard. Your 85 will handle that quite well.
Here are two photos taken across the table at a friend's birthday party with the 85 f/1.4D to give you a sense of what I'm talking about. Shot wide open.