Updated signalling tutorial for the Minecraft mod Railcraft by CovertJaguar!
(Recorded in widescreen, but youtube squished the video when I uploaded it for some reason... It looked fine on my computer. No idea what happened.)
http://railcraft.wikispaces.com/
Other mods seen in this video (Everything else is Railcraft):
Not Enough Items (NEI) - The block identifier in the top right corner + inventory block/item list.
http://www.minecraftforum.net/topic/909223-145146-smp-chickenbones-mods/
DirectionHUD - The compass in the top center of the screen.
http://www.minecraftforum.net/topic/1114612-147-bspkrs-mods-armorstatushud-v15-directionhud-v19-statuseffecthud-v18/
ArmorStatusHUD - The armor & item status indicators to the left of the hotbar.
http://www.minecraftforum.net/topic/1114612-147-bspkrs-mods-armorstatushud-v15-directionhud-v19-statuseffecthud-v18/
