Code:
nick@vps1:~/minecraft$ screen -S minecraft_server java -Xmx1024M -Xms1024M -jar minecraft_server.jar nogui
2010-10-13 09:20:00 [INFO] Preparing start region
Preparing spawn area: 0%
Preparing spawn area: 4%
Preparing spawn area: 9%
Preparing spawn area: 14%
Preparing spawn area: 19%
Preparing spawn area: 23%
Preparing spawn area: 28%
Preparing spawn area: 33%
Preparing spawn area: 38%
Preparing spawn area: 42%
Preparing spawn area: 47%
Preparing spawn area: 52%
Preparing spawn area: 57%
Preparing spawn area: 61%
Preparing spawn area: 66%
Preparing spawn area: 71%
Preparing spawn area: 76%
Preparing spawn area: 80%
Preparing spawn area: 85%
Preparing spawn area: 90%
Preparing spawn area: 95%
2010-10-13 09:20:03 [INFO] Done! For help, type "help" or "?"
http://www.youtube.com/watch?v=1_Or4AR5A-A