Hey Pecon =D,
I had an idea whilst on your server. Yes, I know your not looking for a boss atm, but i came up with a good idea. I think i told you while you were briefly on the server, but i just wanted to remind you. Also, you'll never guess where i came up with the idea :)
Its called.... Pac Man Boss. Ingenious idea don't you think? He could go around and just by touching the players they die.. You can adjust the boss to how you want it, or just discard the whole idea...
Lovin' the server,
Paccy =D