Chatchannel Plugin

Hey Guys,

I have a problem.. I need a chatchannel plugin.

Here are the things that belong:
-Easy create groups.
-Add players to the chats.
-After logging out you joint the chat again when you logged in.
-There is a global chat, and you can talk in it when you use the symbol "!" for the messages.
-The chat prefix looks like this: [Example] Playername: Hey guys.
-The chat plug-in used colors. (Not so much needed)
-You can only see and talk in the chat when you're added.
-In cooperation with groupmanager.
-If I put someone in the Example group (groupmanager), he/she can talk (after adding) in the Example chat. (Not very important, if they can talk in the chats)

I've been looking and i found the plugin "Towny" but i don't know this is a good plugin..
Or this, thit is the plugin that i need (http://www.curse.com/bukkit-plugins/minecraft/chat-channels)
But there are 3 problems. The chats are not saving.. And the player are not locked in the chats after logging out.
As you type: Hello. Then it says:
[Exemple] Playername: Hello
[Exemple] Playername: Hello
But this plugin have a global chat. For talking in this chat you used "!"

Than i need a no friendlyfire plugin.. The guys may not attack each.
The plugin most have 6 groups. As i the command node van the group
fill in the rights of the groupmanager groups, than they can't attack each..

Do you have this plugins?
Or do you know people who have this plugins. Let me know.

Greetings,
Tdwars