I think a lot of us have the McCulloch kits. I love my 6,000K. I would personally go with the 5,000K kit. Not to say the 6,000K is that bad but I think the blue/purple hue on the edge of the pattern is a little too blue. It's a great upgrade, not only for looks, but for safety

I got mine for $280 on eBay and the light output is awesome compared to stock and you should never have to worry about blown bulbs, plus once you drive with HIDs you won't go back to normal halogens.