ubuntu, openbox, firefox, thunar, xterm, pypanel, openoffice.org.

gtk: nova-lime by lyrae http://www.gnome-look.org/content/show.php/Nova?content=57310
openbox: simple by roberth1990 http://www.box-look.org/content/show.php/Simple?content=59707
icons: area o4.2 gnome by Mandarancid http://www.gnome-look.org/content/show.php/area+o4.2+gnome?content=64508
wallpaper: Growing Grasses by Mando Gomez http://www.mandolux.com/