I guess you called your class SGE for "SDL Graphics Engine" . . . unfortunately, there's already a library for the SDL called SGE (probably standing for the same thing): http://libsdl.org/libraries.php?orde...sge&perpage=50
(It's a very good library, too.) So if you ever publish your engine, you'll probably have to invent a new name for it. Maybe FiFSGE.

For your event code, you could use SDL_WaitEvent() instead of SDL_PollEvent(), if all you're looking for is an SDL_QUIT event. Of course, you'll probably extend that class later to handle all event types, so you'd likely have to change it back.

Is there any good place to get SDL-specific help? Any forums in particular? I know about and have visited places like devmaster.net and gamedev.net, but as to something pertaining specifically to SDL...?
You could try the SDL newsgroup. http://news.gmane.org/gmane.comp.lib.sdl

You'll probably get reasonably quick responses here on CBoard, actually, but I imagine the newsgroup is the best place around.