Hi Chris, I got these a few weeks ago, look superb, 6000k so white with a bluish tint as Brett says about the best for looks, but each to their own, fitting was easy for me as all I did was managed to fit everything inside the light unit so there was no need to drill the cap at the back, ballast and everything fitted under where the bulb goes, I know its not ideal, but in the event of it failing on MOT all I need to do is replace it with the standard bulb and wont have a hole in my light cover at the rear. Took me about an hour all told to fit, you just need small hands or be prepered for lots af swearing and scratches.
http://www.ebay.co.uk/itm/190517578570?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Good luck.