I haven't heard too many people mention this, but Arnold vetoed a bill the Dems. tried to pass to legalize homosexual marriage. Both Dem. candidates are on record as being in favor of homosexual marriage. Anybody against same-sex marriage, Arnold must get your vote. Of course the courts may impose it anyway, but Arnold is the only hope to stop it from getting through the legislature.
Correct, Arnold did veto the same sex marriage bill, but in so doing he didn't voice great personal opposition. Rather, he said it would be better left to the voters, and ultimately the courts.
Now, if you were to tell me he authored proposed legislation banning same sex marriage and sent it to the legislature for consideration, then I would feel some sense of conservative values coming from his office.