www.smartvoter.org, the League of Women Voters non-partisan voting information site, says the following:
Statewide Results as of Nov 3 7:06pm, 100% of Precincts Reporting (24035/24035)
61.2% Statewide Voter Turnout (10,142,538/16,557,273)
That's way more voter turnout than I've seen before in an election I've been able to vote in. It's certainly an indication that people cared about the result this time around.
If you want to see a nicely done report of how everything on my (San Francisco) ballot did, take a look here.