I have Minecraft 1.4.5 installed on OS X. I can connect to other servers, and I can play Single-player, but I cannot run many commands in Single-player mode.
I would like to run the commands /sethome and /home. What is the installation I need to accomplish that?

On bukkit.org, I see instructions to set up Craftbukkit.
On minecraftwiki.net, I see how to set up a server and instructions for installing mods.
On khhq.net, I see instructions for setting up Essentials, which mentions MC "server".
I think Essentials will give me the /sethome command. In order to have Essentials, I think I need Craftbukkit as a prerequisite.
Do I need to set up a Minecraft "server" in order to install Craftbukkit?
