what about eurodesignzS? anyone have them? piaa i know are lovely but $$$
dont bother with eurodesignz...they give off a brighter white light, but unlike MTEC and PIAA, they do not improve visibilty at night.
they supposedly give off a light output rating of 7350K-8000K, which will give you more of a purplish tint, but again, will not help you see at night.
MTEC and PIAA are the best way to go. They both offer lifetime warranties - so if they burn out on you, you can have them replaced; though you'd have to pay for shipping.