Does it matter what HIDkit I put in? If so, what one. Or whats the best one to put in?

I'm also a new guy here, but after checking around, I think I'm going to try this Projector/HID Kit in the Parts For Sale section.

Black Housing's w/ HID's in the 5000-6000K range, depending on what's available.

http://www.cobaltss.com/forums/showthread.php?t=10889

I heard of quite a few problems with the aftermarket projector housings leaking/fogging up.