This mod adds Catwalks, which make traveling long distances easier, and Caged Ladders, which prevent the player falling.
This is my first finished modding attempt (all the others were too ambitious, so I never ended up finishing them.) I hope you find it useful. 
Blocks:
Catwalk:
Caged Ladder:
Items:
Blowtorch:
Steel Grate:
Rope Light:
Visit the post on MCF for more info
