Seed Name (cut and paste to avoid errors): -8042471896278289475
Tested on Minecraft 1.5.2
This Minecraft Seed spawns you in a plains biome with a half dozen cows nearby. Also, next to the spawn point is a decent cave system which will make gathering some ores very easy at the start. So grab some coal and iron ores and lets move on. (X: 11, Z: 133 for a dozen surface coal ores…torch time!)
There is an absolutely ridiculous ravine that you MUST go check out. Its double wide with a lava floor. Surface diamonds all over the place and an abandoned mineshaft. X: -683 Y: 17 Z: -199. There is a stronghold connected to the abandoned mineshaft, if you have the coordinates for it leave them in the comments. Check out the video:
There is also a Jungle Temple (X: 878 Y: 78 Z: -384) and Desert Temple.