Sorry for not giving much info...
You can get the kit for around $30 (either off of ebay, or some retail parts stores carry them)... here is an example of what I'm talking about:
Ebay Kit
This is the kit that I got... (I'm pretty sure, it was a while ago) and it fit 100% perfectly in place of the stock lamps. If you get a kit, ditch the cheap blue bulbs that come with the kit and get a decent set of bulbs (I chose Phillips Vision Pus).
For the wiring upgrade I simply hooked up a relay with some good 10ga wire directly to the battery. I did this after installing that conversion kit and it made a big difference by itself.
Here is a pic of the kit installed with the crappy stock blue bulbs that I soon ditched.
Lemme know if you have any questions..
;D