kdenlive?
http://www.kdenlive.org/

Welcome to Kdenlive free and open-source video editor for GNU/Linux and
FreeBSD


Kdenlive is an intuitive and powerful multi-track video editor, including
most recent video technologies. Our software is completely free, in all
sences of the expression, as defined by the GNU foundation. Using Kdenlive
is investing in a community driven project, which aims to establish
relationships between people in order to built the best video tools.