CNET and CBS ran some short articles about PG&E's support announced about a week ago for plug-in hybrid electric vehicles. If you charge at night in California, that's around $0.75/gallon equivalent cost, and you're saving the planet and getting us out of foreign oil, too.
There have been recent advances in battery technology. If the U.S. had wind power turbines on just 3% of the available farmland, we could meet 95% of our electricity demand. Sure, wind is intermittent, but there are plenty of ways to store power, e.g. we could build electrolysis and hydrogen fuel cell storage plants, and/or increase grid capacity.
Special bonus poll in comments: How much would you pay for a Prius that could run 30 miles without any gas?