In a tabletop setting or system game, or a Mafia style game, or the occasional setting where players are opposed to one another, an impartial GM without a PC can be really helpful, but in a story driven, social or freeform game, it honestly helps to have a character as a GM to help drive things along. I tend to use a mix of static and disposable NPCs to keep things moving, both of which you have at your disposal already. Caela's absolutely right though, having a good cast as your disposal helps a lot as a GM.<br/><br/>As happy as I am to offer advice and help, I wouldn't take over the GM slot, I'd feel like I was stealing your game, but I'll be happy to co-opt an NPC or two if you have a plot point come up that demands more NPCs than you feel like writing.