Update: There are better ways do do the same without installing a new theme. Just modify your ~/.gtkrc-2.0 file and add the following:

style "scrollbar-arrows" {
GtkScrollbar::has-backward-stepper = 1 # top - up arrow
GtkScrollbar::has-forward-stepper = 1 # bottom - down arrow
GtkScrollbar::has-secondary-backward-stepper = 1 # bottom - up arrow
GtkScrollbar::has-secondary-forward-stepper = 0 # top - down arrow
}

class "GtkScrollbar" style "scrollbar-arrows"

Clearlooks-Next is a Gtk2 theme based on Clearlooks but using NeXT style scrollbars. IMHO having three buttons in the scrollbars is better than having just two.

• Download Clearlooks-NeXT

Screenshot:

Links:

• Clearlooks-NeXT in GNOME Art
• Clearlooks-NeXT in GNOME-Look