Borderlands
Grade: C
Disable The HUD
Open: Documents\My Games\Borderlands\WillowGame\Config\WillowInput.ini (directory may be different depending on your OS)
Find Under The "[Engine.PlayerInput]" Section: Code: Bindings=(Name="F8",Command="shot")
Add Below: Code: Bindings=(Name="F7",Command="togglehud") Replace F7 with the key of your choice.
Image taken by scitek, found at: http://www.neogaf.com/forum/showthread.php?t=457378&page=158
Borderlands - No Hud