I generally prefer light keys on dark cases, but it can be nice to mix it up. For Round 3 keycaps, either case should be fine. You can see them on both white Filcos and black Filcos if you do a google image search of "geekhack round 3" (without the quotes).
HzFaq wrote:I thought that the case was "pure" white and it was the caps were cream?
edit - At least I hope it is, I wanted to use a white case with my Phantom...
Both the case and the keycaps are the off-white creamy color. I think it usually looks classier than pure white though.