The 9007 HID bulb kit that I used actually worked out quite nice. It has a good beam pattern because of the kits bulb placement adjuster, you can adjust how deep into the projector the bulb sits so that it matches the factory bulbs placement. My lights on the road look great, nice and bright with a good horizontal line that I adjusted downward very very slightly so that I wasn't blinding cars in the lane in front of me or on coming traffic.
They may not be as good as my Audi's projector or my BMW's.
I've considered retrofitting the A6/B5 Audi's angle eye hi/low projector into the factory projector. That projector is one of the best made, and inexpensive on eBay. It will just take a lot of man hours on the retrofit. What I have now is more than tolerable, considering how much better than stock it is.
HaroHunter: The bulbs are a High and Low beam bulb, it has a shroud around the bulb that is slid out of the way for the high beam and slid over the bulb partially to dim it and change the pattern for the low beam
Upgrading ANY vehicle from halogen to a HID type bulb is a must in my eyes. They make night driving a hell of a lot better.
Also a HID kit for fog/driving lights makes a pretty impressive improvement on top of the new headlights. In conjunction with THE FOG LIGHT MOD
so they stay on with the high beams you can make it like daylight in front of you.