I believe Santa ordered a kit from Mengmotorsports for my xB. We'll have to wait until next week to find out for sure.

I looked up reviews from all over the web. ddm definitely has the best prices. Their reviews, especially with customer service, were very mixed though. Meng was a little more; I think around $115 pair including an extra wiring harness to run power directly from your battery. I liked the youtube vids of someone beating their ballast with a hammer and it running submerged in a beaker of water. Maybe all brands will do that though, I don't know. I didn't dig up any bad reviews on Meng either. Experience is the best test though. We'll see next week.