send hostname in dhclient.conf

Hi!
I hope this question has not been answered yet in this form...
I've searched through the web/newsgroups but I haven't find a real
solution for my problem...
first of all i use debian stable

I want that dhclient.conf send the real hostname of the pc to the
dhcp-server! like windows-pc's (or freebsd, suse...f.ex.
"hostname=AUTO") do... instead of manually write the hostname value
like (send host-name "dell101";) in the dhclient.conf...
is there any script that copy the entry in /etc/hostname and paste it
in /etc/dhclient.conf at boottime?
sorry if this question has been posted oftener...
Can you please give me some tipp?
thank u very much!

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