[CentOS] CentOS 6: hostname and timezone

Hello,

I've purchased a new dedicated CentOS 6.0 / 64 bit server
and have 2 minor problems please:

1) The "hostname" is reported as CentOS-60-64-minimal at CLI -
     eventhough I've edited /etc/hosts and changed the 2nd line:

127.0.0.1 localhost
176.9.123.123  preferans

2) Why is /etc/localtime a regular file? Should I maybe

rm /etc/localtime
ln -s /usr/share/zoneinfo/Europe/Berlin /etc/localtime

   Why isn't it done by the CentOS 6.0 install?

Thank you
Alex