To print out an Income Verification Form, please visit the documents page, or you can call PeachCare for Kids toll-free at 877-GA-PEACH (877-427-3224) and request the Income Verification Form. Income Verification Includes: All income information must be the most current or recent information.
GNOME, KDE, XFCE, and LXDE are complete desktop environments, each of which come with their own programs and applications, menus, icons, a file manager, and a window manager. Window managers are, as the term suggests, simply used to manage the opening and closing of programs in a graphical, point-and-click windowed desktop.
Speaking from experience (I use XFCE on my Debian Virtual Machine, which I use daily for various tasks), XFCE is very nice and you are going to have the full Ubuntu experience even if your computer lacks raw processing power to support Unity 3d.