On my old 323i, I had halogens.
I bought my 35w HID kit from DDMTuning (no error-code eliminator was even necessary, but I bought it just in case), and one of the HID ballasts blew after like, ehh...maybe 6 months. I was pretty pissed, considering that kit is not exactly cheap, and eBay kits last longer than that..
So what did I do? Buy 2 ballasts on eBay!!
And then what did I do? Got rid of the 323 and bought an M3!!
So now, I have 2 ballasts in my room. May try and sell them.
Anyways, I dig the car. I personally prefer the chrome over the black on those particular wheels.
I think you need a new/better sig too!