Having not received any answers, I'll supply one based on my experiences. At this stage, this is somewhat preliminary, as I've not had a lot of free time to resolve all the issues I've encountered.
I didn't find any distributions which had Apache, PHP, Perl, and PostgreSQL (which I want because that's what we use at work), so I downloaded and installed XAMPP.
It turns out that XAMPP does not distribute Tk (understandable, since I wouldn't expect that to be useful for web stuff). I did grab Tk from CPAN; however, I only found source. The build files which come with Tk expect a Microsoft C compiler & make system. I have Visual Studio C++ (Express), which includes nmake and the cl compiler. Unfortunately, Visual Studio doesn't pre-configure itself for command line use. At this point, I'm still working through issues to get that to run so I can build and use Tk.
Eventually I hope to download & install PostgreSQL.
More if/when I get things working.