An AppleScript for automatically switching your iTunes Store accounts between countries.

gistfile1.scpt

tell application "System Events"
	tell process "iTunes"
		set frontmost to true
		try
			click menu item "Sign Out" of menu "Store" of menu bar item "Store" of menu bar 1
		end try
                delay 1
		click menu item "Sign In" of menu "Store" of menu bar item "Store" of menu bar 1
		delay 1
		keystroke return
		keystroke "your account's first letter"
                keystroke "the rest part of your account"
		keystroke tab
		keystroke "your password"
		keystroke return
		delay 4
		keystroke return
	end tell
end tell