On the Bilbray-Busby race, Byron York pretty much sums up my thoughts:
it's hard to see the race as a bellweather of anything. The Republican won — well, it's a heavily Republican district. But if the Democrat had won — well, the race was to replace a Republican who is in prison for corruption, with the current GOP candidate weakened by lesser candidates eating away at his support. That wouldn't have proved much, either.
Turnout, by the way, was under 35%.