You'll definately wanna check ebay. I had bought a pair of D2R bulbs for my fiance's dad's 2001 qx4 with the factory hid lights.
In my opinion, the lights I bought for him actually look much better then the replaced factory bulbs. Changing them is a breeze too, I find taking the battery out on the passenger side will give you more room to maneuver.
Try this:
http://cgi.ebay.com/ebaymotors...ories
I don't remember where I had bought the pair of bulbs but these will work. I had bought the 8000K and they look really nice.