Pre-configuring packages?

[Dylan Vaughn]

hey all, 

what is the best way to feed configuration information to packages using
FAI?  

for example, at the moment i'm working on setting up a generic web
server type system which has apache and php4 (among other software). 
apache installs fine, but when php4 is installed, it asks a couple of
questions in the configuration process (re modifying the httpd.conf and
restarting apache) which stops the auto install.  how can i put these
options into a file or something so that i can keep it as an automatic
install? 

thanks, 

dylan