RapidEntry2012: can you guys advise as to when I would use a 52 or 54 or 56 wedge in what circumstances
Each one of those clubs has different carry and a different action on landing, depending on the shot you're using. Instead of looking at the degree of the wedge, look at the yardage. Do as Alosso suggests and set your bag up by the gaps between the wedges. You want them as small and even as possible.
With 3 wedges you will have 15 different yardages when you combine all of the shots you can use. This will allow you to handle virtually any scenario you find yourself in. Take the time to learn them and you won't be sorry. GL