When asked this, I've countered with "I was hoping to make $X" (where X is much more than I make now). Then I follow up, but "I'd like to learn more about the c

When asked this, I've countered with "I was hoping to make $X" (where X is much more than I make now). Then I follow up, but "I'd like to learn more about the company before I make any decisions on salary." This establishes that you are a high-value candidate, and you are flexible and not an egomaniac that only cares about money.