What is your long term goal with your lighting setup?
Do you want to stay with the basic lighting package or do you want to grow?
How much are you willing to spend?
What is the bulk of your events? (schools, weddings, bars, etc)
Intels have gone down in price. You can get a basic four scanner setup with controller for less than $1500ish. Add a set of crank-1 stands and a fogger or hazer and you are done.
Good basic (really basic)
>One 12" mirror ball with a couple of pin spots mounted on a T-Bar stand. Add a random cheap effect light or two (Like a vertigo)and you are done. Easy cheezy for basic events. For less than $200ish
If you want a system that will grow then forget the "basic" package I just talked about and buy some scanners. Your initial cost will be much greater but long term, it is a great investment.
Start small, you can do a lot with two intels (like mighty scans or scan trons, nova scans), a mirror ball, medium sized fogger and a DMX operator controller mounted on a little truss system for around $950 Save some more cash and buy two more scanners and maybe a DMX barrel light or moonflower and you will be rockin.
Check ebay, lots of new and used intels. Some names to look out for:
>Mighty Scan (great fixtures for the price, they are discontinued, I die a little more each day.)
>Nova Scan (good intel for less than $200)
>Scan Tron (AMDJ's new scanner)
Good luck I hope this helps. Please keep us posted, give us some more info.