changing sealed headlight system to composit headlights

Hello;
I have a 1991 pontiac Grand Prix 2 dr GT.
Well , here,s my problem; what i want to do is take out the 4 headlight sealed beams and change them to composit type headlights, the one where you just change the bulbs, I cant find anywhere to get them at . I want to put in stronger brighter Xenon bulbs in . does anybody know where to look. Now these are smaller rectangular sealed beams.I want to just change the bulbs to stronger ones.
Don

i'm sure someone makes the type you're looking for but i haven't looked or seen the change over; however, in the mean time they make sealed headlights with the xenon-like bulbs.

There are not companies that I am aware of at this time that offer lights for our cars...but there has been a number of people that have converted there sealed to new bulbs...check out this link....

http://www.clubgp.com/cgi-asp/mods.asp?modid=56

Thanks man;
this sounds like what im gonna have to do to update my headlights.
The info that you posted was great
thanks givemeabreak
Don