Merge repositories?

Hi all,
is it possible (without manual dump fiddling) to merge 2 repositories?

Scenario:
When migrating e.g. cvs to svn we first set up a svn pilot apart the main cvs repo. Later, when we
feel confident enough we'll convert the existing cvs repo and would like to merge in the pilot.

How could we do this?

Greetings,
        M

--
Marcus Rohrmoser
Software Entwickler
GMX GmbH, Riesstr. 17, 80992 München
Telefon +49 89 14339-539
----
EMail Sicherheit ganz einfach:
http://www.thunderbird-mail.de/extensions/enigmail/enigmail.php