747861646707618271Minecraft 1.4 - 1.4.2 Seed
This seed will spawn you near a good-sized NPC village.
Seed Code: 747861646707618271
X: 370 / Y: 65 / Z: 310
These coordinates point to the entrance of a cave inside the village. And things only get better still - go on, read about location 2.
X: 360 / Y: 40 / Z: 315
What's that next to Steve's hand? You guessed it: diamonds! To get to this point, you'll need to go down into the bottom of the cave and widen the gap at around (368, 58, 293) so you can go through it. Then you'll be able to go a few more levels down. Next, there's a 2-block-high at about (375, 53, 294) with some iron ore next to it. You'll want to dig a tunnel there until you hit more air (about 6 blocks long). Then just turn right and keep going down. As you can see, this cavern is just loaded with resources! Just from looking down from all the way up here I spotted those diamonds, some redstone ore, some iron ore, and of course, there's coal everywhere! If you can get down there safely, you've got yourself one heck of a mine! Just be sure not to let the villagers fall down there. They go pretty far. In fact, just as I started heading back, I saw a librarian that almost fell off the huge cliff! I'd suggest patching the hole and adding an iron door at the bottom of a staircase. And of course, torches, torches, and more torches everywhere!
X: 585 / Y: 65 / Z: 200
Want to take on a witch? Well, here's your chance!
X: 570 / Y: 75 / Z: -270
These coordinates are to the entrance of a jungle temple across the swamp from the witch's hut. I couldn't find the entrance at first; it turns out that you can barely see it through some dirt blocks. Just dig out a couple and you're in. The unhidden chest contains seven iron ingots. The hidden one has two diamonds and six gold ingots inside. Funny - a creeper spawned inside and got shot a time or two by one or both of the dispensers. LOL
There's also another jungle temple at (640, 65, 725). The unhidden chest in that one contains 4 iron ingots, 8 bones, and 12 pieces of rotten flesh. The hidden chest contains 7 gold ingots, 5 bones, and 17 pieces of rotten flesh. Bones and rotten flesh may not be so great for you, but the wolves they tame, feed, and breed are very powerful allies and not to be underestimated. If nothing else, you can make bone meal with the bones for fertilizer. Anyway, enjoy the seed!