Basically what the question asked above. I've been through three stores and the closest I came was a Pass and Seymour switch/outlet combo with a snap in LED light, but it wasn't a GFCI. I'm hoping to avoid putting in a new box in this bathroom if I can avoid it (plaster wall, PITA to work with). I know that asking for brand suggestions isn't cool, but some ideas of places to look or a definitive yes or no would be awesome.
I have not seen a device with all three items at once. (Gfi/switch/night light) Pass & Seymore does make great sw/lite or lighted gfi recpts. Is there any possibility you can expand the single gang box to a two gang box? If you expand it you could use one lighted device and a normal devise, problem solved.