If you develop your application for windows, and don't want anything fancy,
then you can still use standard WINAPI dialog boxes, althought you will have to code quite a bit to
make even simple things to work, but this way your applications will be fast and small(and ofcourse, will not require megs
of external libraries to work.).
MSVC++, and probably many other IDE's has an inbuilt dialog editor.
You can find some useful tutorials in those places:
http://www.winprog.org
http://www.functionx.com/win32/
I have heard that Visual Basic is a good option too, probably because you can make GUI's quick and easy with it,
but I think you should stick with C++ if you already learned it.
Ofcourse you can use the easier way of MFC to do it, but it's
big size, slow speed, and confusing architecture had scared me away from it.