Which ApacheModules are really needed ?

[BeNe]

I´m currently checking all my enabled ApacheModules. I want to speed up the Apache and set some RAM Free with disable some unneeded modules.
Here is a list of my enabled Modules:

Code:

lrwxrwxrwx 1 root root 30 Jan 23 07:35 actions.conf -> ../mods-available/actions.conf
lrwxrwxrwx 1 root root 40 Oct  6  2007 actions.load -> /etc/apache2/mods-available/actions.load
lrwxrwxrwx 1 root root 28 Jan 23 07:35 alias.conf -> ../mods-available/alias.conf
lrwxrwxrwx 1 root root 28 Oct  6  2007 alias.load -> ../mods-available/alias.load
lrwxrwxrwx 1 root root 33 Oct  6  2007 auth_basic.load -> ../mods-available/auth_basic.load
lrwxrwxrwx 1 root root 41 Jan 15  2007 auth_pam.load -> /etc/apache2/mods-available/auth_pam.load
lrwxrwxrwx 1 root root 32 Oct 27  2007 authn_dbd.load -> ../mods-available/authn_dbd.load
lrwxrwxrwx 1 root root 33 Oct  6  2007 authn_file.load -> ../mods-available/authn_file.load
lrwxrwxrwx 1 root root 36 Oct  6  2007 authz_default.load -> ../mods-available/authz_default.load
lrwxrwxrwx 1 root root 38 Oct  6  2007 authz_groupfile.load -> ../mods-available/authz_groupfile.load
lrwxrwxrwx 1 root root 33 Oct  6  2007 authz_host.load -> ../mods-available/authz_host.load
lrwxrwxrwx 1 root root 33 Oct  6  2007 authz_user.load -> ../mods-available/authz_user.load
lrwxrwxrwx 1 root root 32 Jan 23 07:35 autoindex.conf -> ../mods-available/autoindex.conf
lrwxrwxrwx 1 root root 32 Oct  6  2007 autoindex.load -> ../mods-available/autoindex.load
lrwxrwxrwx 1 root root 27 Oct  6  2007 cgid.conf -> ../mods-available/cgid.conf
lrwxrwxrwx 1 root root 27 Oct  6  2007 cgid.load -> ../mods-available/cgid.load
lrwxrwxrwx 1 root root 26 Oct  6  2007 dir.conf -> ../mods-available/dir.conf
lrwxrwxrwx 1 root root 26 Oct  6  2007 dir.load -> ../mods-available/dir.load
lrwxrwxrwx 1 root root 26 Oct  6  2007 env.load -> ../mods-available/env.load
lrwxrwxrwx 1 root root 34 Oct 22 05:53 fcgid_ispcp.conf -> ../mods-available/fcgid_ispcp.conf
lrwxrwxrwx 1 root root 34 Oct 22 05:53 fcgid_ispcp.load -> ../mods-available/fcgid_ispcp.load
lrwxrwxrwx 1 root root 27 Jan 23 07:35 mime.conf -> ../mods-available/mime.conf
lrwxrwxrwx 1 root root 27 Oct  6  2007 mime.load -> ../mods-available/mime.load
lrwxrwxrwx 1 root root 34 Jan 23 07:35 negotiation.conf -> ../mods-available/negotiation.conf
lrwxrwxrwx 1 root root 34 Oct  6  2007 negotiation.load -> ../mods-available/negotiation.load
lrwxrwxrwx 1 root root 37 Jan 15  2007 perl.load -> /etc/apache2/mods-available/perl.load
lrwxrwxrwx 1 root root 28 Oct 24  2007 proxy.conf -> ../mods-available/proxy.conf
lrwxrwxrwx 1 root root 28 Oct 24  2007 proxy.load -> ../mods-available/proxy.load
lrwxrwxrwx 1 root root 33 Oct 24  2007 proxy_http.load -> ../mods-available/proxy_http.load
lrwxrwxrwx 1 root root 30 Oct 24  2007 rewrite.load -> ../mods-available/rewrite.load
lrwxrwxrwx 1 root root 31 Jan 23 07:35 setenvif.conf -> ../mods-available/setenvif.conf
lrwxrwxrwx 1 root root 31 Oct  6  2007 setenvif.load -> ../mods-available/setenvif.load
lrwxrwxrwx 1 root root 26 Oct 25  2007 ssl.conf -> ../mods-available/ssl.conf
lrwxrwxrwx 1 root root 26 Oct 25  2007 ssl.load -> ../mods-available/ssl.load
lrwxrwxrwx 1 root root 29 Oct 24  2007 suexec.load -> ../mods-available/suexec.load
lrwxrwxrwx 1 root root 40 Jan 15  2007 userdir.conf -> /etc/apache2/mods-available/userdir.conf
lrwxrwxrwx 1 root root 40 Jan 15  2007 userdir.load -> /etc/apache2/mods-available/userdir.load

I know that there are many modules enabled that comes per default and must be enabled. Also the ispCP_FastCGI/Proxy and SSL that i enabled. But are _all_ these auth needed by ispCP or a WebApp?
What modules have the most Users here enabled ?

Greez BeNe