Modern webdev is really a multitude of different fields, including:
- Graphic Design (Vector and Raster)
- HTML & XML Templating
- CSS & XSL Layouts and Styles
- Client-Side Scripting (Javascript)
- Programming (PHP, VB, Python, etc.)
- DBA (MySQL, MS-SQL, etc.)
And because it's also competive, even if it's only a hobby, you also need marketing skills, knowledge of how the search engines work, an understanding of community and the pyschology of web users, etc. So the days of the webmaster are long gone.
None of which answers your question, I'm just trying to make a point:
Forget about picking a "web design package", there's no such thing any more. What you already have is about as close as you can get so I'd suggest continuing to play with that until you find one particular aspect of it really interesting, then focus on that and start looking for people to work with for the rest.
adam
Bookmarks