I recently became the proud owner of a very clean 2001 GTP.
One of the first orders of business is to replace the original horribly clouded headlights. I may as well be using candles. Looking for an on-line source, preferably in Canada, or a reputable US source that ships USPS.
Still undecided on exactly what to get. There's lots of useful threads on headlights here that will take me a while to sort through and a lot of issues with the GP headlights to get up to speed on. I'm thinking about just getting standard headlights and good new bulbs for the time being while I work on other things.