I've packaged xfce4-xfapplet-plugin, which allows GNOME panel applets to be used in the Xfce panel. It does require that a number of GNOME libraries be installed as dependencies.
Package Size: 34K
Installed Size: 170K
xfce4-xfapplet-plugin: xfce4-xfapplet-plugin (use Gnome applets inside the Xfce 4 panel)
xfce4-xfapplet-plugin: XfApplet is a plugin for the Xfce 4 panel. The plugin itself has no
xfce4-xfapplet-plugin: special functionallity, its only purpose is to enable one to use Gnome
xfce4-xfapplet-plugin: applets inside the Xfce 4 panel just as they are used inside the Gnome
xfce4-xfapplet-plugin: License: GNU General Public License (GPL), Version 2
xfce4-xfapplet-plugin: Authors: Adriano Winter Bess <firstname.lastname@example.org>
xfce4-xfapplet-plugin: Website: http://goodies.xfce.org/projects/panel-plugins/xfce4-xfapplet-plugin
After testing this package please stop back and let us know how it works for you.