A good plan, but in places were we have single fixture (like the top of the stairs) I would that even the highest wattage I could find available (28W I think), in the standard colour temperature it still felt much darker than a 100W incandescent. Only by going to the whiter ones did it feel as bright.

I like your idea of mixing colour temperatures, might give that a go (but again in the couple of areas well really want the brightness there is only one fixture available).