I got a 35w 5000k kit off ebay, with 2 year warranty for something like £25. Been good as gold. Find the ones that offer two year warranty.
http://www.ebay.co.uk/itm/330379335700?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 That's where I got mine. The cheaper kits have plastic bases on the bulbs which don't fit properly. These have metal bases just like the OEM bulbs so fit perfectly.
That's exactly what I was checking for, I've got some plastic base ones and they're poor. Cheers Joe.
Yep, I got the xenons online kit, I opted for the Premium (slim) Balast. Had them fitted for a year now and no problems.