Using MCEdit you can quickly build schematics and create interesting things for Minecraft.
I've built this quick 5min video of a bunch of schematics I've been working on.
At the top you start to get a sense of how easy it is to snap together some parts to make a large item.
The sub stations are handy because they allow you to get up to maximum speed in multiple locations, but I need to re-do them so a powered cart would normally ignore them for faster transit.
There is a mine, it's a branch off the water section that heads straight down to bedrock. Sadly it's not even close to complete so there's no point in showing it yet.
Music credits: Cebu - Commodores, and a short sample of Cat from MineCraft and C418
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