I'm a big fan of a lot of the mods currently being ported over and this seems the more creatively active/fertile place to suggest a mod that I would ultimately like for my server rather than for solo. I want to put our TNT to some actual beneficial use while maintaining the game experience. This would be done with Ground Penetrating Radar. Any TNT block placed underneath a stone step (and surrounded on all sides) would take on slightly different properties. This would prevent TNT from losing its current use (the BOOM! part) and add a trigger for when you try to light a stone step on fire with a flint and steel. Instead of taking out the area around it, the world would shake a bit (per normal TNT) and then for a short running timer of say 20 seconds, all stone and dirt blocks below the TNT in a 8 block diameter hemisphere become unbreakable (like with cuboid) glass blocks, before being "undone" at the end of the timer and returning to their original state. This would let the miner step back and see if there are any caves or precious materials immediately around them, without having to stripmine the landscape. Now, although I have some previous programming experience, I don't know Java very well, and thus I don't know if this would create ludicrously heavy processing or not. Thus, I come to the place where the masters dwell. Feel free to tear the idea up, but if anyone has ideas, I'd love to see them. Added a bit of a poll just to see if anyone would be interested in it. Everyone keep up the awesome that is the Bukkit conversions! I look forward to using it with my server.