running rsync daemon as unpribileged

[Keld Jørn Simonsen]

Hi 

I run a mirror service where for gentoo I run rsync as a daemon.
Currently the daemon runs root to get the 873 port opened.
And when transfers then run, they run as nobody.

I would like the rsync daemon to connect to 873 (as root)
then possibly do a chroot and then run always as something else
than root (maybe nobody).

It this advisable? Is it possible?

best regards
keld