I really don't understand the fad for yellow lights. I am from France, where they were law until the 90s, and like everyone there, I hate them. They're inferior in every way to regular white.
My personal setup is 4300k HIDs for headlights (no drls), and plain old halogen fogs. I would suggest the same for you, maybe 5000ks if you prefer
HID fogs only glare, and blind everyone else on the road. People who run them should be executed on the spot
(Don't get me started on people who turn their fogs on when it's clear out!)