Yes, I am one of those annoying IRC addicts.  While I am on Dal-net chatting to my friends and meeting new people, I have picked up some fun toys that I use and thought I might throw on here for you to have a go with too.  I found a few of these things on the net, but most of them I got from Dilan and DaRk1.

Auto ID		Stop NickServ from wasting your time.  Just turn this on and when that annoying message pops up this script will automatically identify you.
Caps Scan		Stop constant use of Caps, if you are an Op.
A/S/L Blocker		Gives lamers a 600 seconds on your ignore list for asking A/S/L. (Designed by Dilan and DaRk^1)
Guess Number Game		Amuse yourself and others by playing a guess the number game.
Invite Block		Puts people on your ignore list for inviting you to porno sites. (Designed by Dilan and DaRk^1) - (requested by evan^38)
NetSplit Detector		Detects those annoying NetSplits
Private Messages		Send private messages that can only be seen by you and the person you want to see.
Colour Writing - (stylewriting)		Permanently write in your favourite colour.  Or you can change colours every time you are on IRC.
Showit		Be reminded if you are an Op by the giant @ on your monitor.
mIRC download		Download mIRC for win95/98
DECMAN Script		This is the script I use with my mIRC.  Download and unzip into your mIRC folder. Contains most of the zip files that are listed here separately. (Replaces all .ini files.)
Jokes.zip		Joke and insult popups.