But which do you want? Games or widgetry style programs with push-buttons and the like? Libs tend to focus on one or the other.
I tend to prefer SFML for game style video output and wxWidgets for widgetry. Better yet, they play nice together so you can use both in the same program.
I like using Qt/widget, desktop style applications, but you could use it to display an OpenGL window too.
Oh yeah, for things where you plan to draw a lot, try out OpenGL. SFML also has a simple wrapper for it if OpenGL is too complicated.