Agreed, both ways, huh?
In the past two months I've built up two sets of 650c wheels using the black Rigida DP18's. One set is using silver high-flange Suzue hubs with black spokes and silver nipples. Looks damn good when paired with all-black tires. The second set was mated with a set of black 105 hubs and silver spokes/silver nipples, and the same all-black tires. Which looks better? Depends on the mood. The black/silver/black combo, as cripter states (his baby or not) looks freakin hot.
Quit banging your head against the wall and get the black hubs and built em up. The amount of time and energy it will take to strip and get the blackies turned to silver and make it look <right> will eat up alot of time. Enough that you may, in the end, just wish you would have waited. And if you don't get it right......<shudder>