In httpd.conf:

# User/Group: The name (or #number) of the user/group to run httpd as.
# On SCO (ODT 3) use User nouser and Group nogroup
# On HPUX you may not be able to use shared memory as nobody, and the
# suggested workaround is to create a user www and use that user.

User www-data
Group www-data

Set permissions on DocumentRoot properly, and things should be ok.
www-data is what debian uses as the default. First thing that came to
minde....

Andrew S. Zbikowski | http://www.ringworld.org
"We can learn much more from wise words, little
from wisecracks and less from wise guys."
--William Arthur Ward