I was wondering if it was possible to replace the xfce panel with the lxpanel from lxde.
Xfce Version: 4.8
Your Distribution and Version: Xfce Linux Mint Debian Edition 201204
Sure, if you can remove xfce4-panel and install lxpanel then add the latter to the startup apps.
If you can't remove xfce4-panel, try changing in /etc/xdg/xfce4/xinitrc