I would love to have bi-xenons in my XJ but really can't picture the pricetag - seems H4s, a new HD wiring harness and a good pair of halogens are the best bang for the buck - by the time I was done dossing around with bi-xenon retrofits & parts, etc, I could upgrade stock lighting to the aforementioned, go with a WJ MC / booster & buy an Aussie for my 8.25 (!) as well...
No tech here, just bitching and moaning.