The problem is you northerners are in love with this bland white gravy made from what my guess is snow, something we don't have access to in the south.. I don't think you guys put the grease in the sausage in with the gravy, you miss all the cholesterol that way....
Anyways, nice fatty sausage is the key. Cook the sausage (preferably in butter), leave the grease in the pan, add a tablespoon of flour at a time, and stir until it is browned. Keep adding flour until you are almost at the desired consistency, then add a touch of milk and simmer it down to the right thickness. Add salt and pepper to taste.
Another good southern drink:
In a tall glass filled with ice add 1 shot of southern comfort, half a shots worth of Lime cordial, and fill the rest of the glass with a good lemonade and enjoy on a hot day...