Don't expect to become a master Web developer overnight. It takes time, research, practice, and experience to make a good programmer, no matter what language you write in, or what platform you program on. While learning to build simple Web apps might be a small step for a RPG programmer, its a giant leap forward for the i5 community.
Once you are comfortable with the HTTP Server and basic Web application programming, tacking other more complex options becomes much less intimidating. You may even decide that the relatively simple yet powerful CGIDEV2 product gives you everything you need to deploy your Web apps.