On Debianhelp.co.uk, there's this quick guide for those Debian users out there looking to quickly and easily install a full LAMP setup on their machine.
They start with the install of Apache 2 via the package manager/installer apt-get (different packages depending on which style you prefer - mpm-prefork or mpm-worker). With that installed, the web server should be up and working. Next up is MySQL, installed in a similar way and enabled in the php.ini file as a module.
Finally, PHP is installed and support for it is added into the http.conf file for Apache. There's also a brief mention of installing ASP via a mod_perl package as well.