I've also downloaded Fort Zero,which is rather nice, and I've got a basic dug-in in another world.
The base has expanded a bit since time of screenshots. I've got an expansion process:
1. Find area you want to colonize
2. Mark it somehow. Torches or strange structures work well, I use 1x5 pillars with 4 torches on em.
3: Cover the entire fucking area with torches. Don't let there be a single spot of darkness remaining.
4: While doing #3, create 4x4x6 huts with torches on top and a ladder+workshop inside, kinda like guard towers (I'll throw a screenie your way soon)
My own legit map is doin well, I make sure to plant a tree every so often and have a cobblestone factory and irrigated farm so I'm pretty solid for all of that. tracks will eventually cover all of the settlements, but although I have shitloads of iron(2 stacks of iron blocks. Not bars, but BLOCKS) from the awesome cavern under my home, I'd rather have em planned out before laying them down everywhere, I'm pretty bad with building those.