Ok here goes...
1. Download CraftBukkit's latest build:
http://dl.bukkit.org/latest-rb/craftbukkit.jar2. Put the .jar file in the directory you'd like the server to run from
3. Open notepad and type:
@ECHO OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre6\bin\java.exe" -Xmx1024M -Xms1024M -jar craftbukkit.jar
PAUSE
4. Save the document as RUN.bat (not as a .txt)
5. Double click RUN.bat and you're away!
6. When you're done toying, issue "stop" command in console.
If you want it hamachi, just add your hamachi IP in the server properties file where it says server IP and turn online mode to false.