What Mods Do You Think Are "Essential" to Have on the Server?

[Muffincat]

Keep in mind, we won't be using all of the ones you suggest. I want to stay away from economy mods, mmo mods, anything that changes the game drastically. I know people really love /home, so we might put that in, I guess. Will probably give mods item spawning and stuff (though we won't really be using it much).

We're using Bukkit, so if you don't know what kinds of mods there are, you can check out their site.

edit:

For mods:
-Whitelist
-"OP" status/ranks
-Item spawning, teleport
-Ability to move bedrock

For everyone:
-The death thing (tells the server how you died :P)
-/home

For the record, mods won't be using these abilities unless there is some reason they need to. That's why everyone doesn't have them.