Hellvis...keep in mind that HID's that are not in projector lenses will blind oncoming traffic (not to mention illegal; in the U.S. at least). I would say invest in LED's or whiter halogens and keep the stock housings or buy projector lenses and go HID.
If you do put HID's in the stock housings, expect lots of hate, because HID's straight to the eyes freaking suck...I'll be the one with my finger out the window yelling "ricer"
Scotty brings up a good argument here
and I will honestly expect him (along with other smart, experienced members) to pitch in within a couple of days... if he sees this really old thread
I don't know the best LED/Halogen bulbs are the best so hopefully someone could help because I've been meaning to make the switch, I just haven't been able to do the research...and my girl deserves better things to invest in until one of my bulbs blow.