Has anybody installed yellow low beam bulbs for inclimate weather? I was planning on installing a yellow H7 bulb in the low beam assembly and a hyper-white (e.g. SilverStar) bulb in the high beam. Has anybody else done this mod? I can only find Nokya (sp?) bulbs on the web, including eBay. Anybody have comments on Nokya? I'd love to get a set of PIAAs, but it appears that this is price prohibitive.