I echo smooth's comments. And pan, I point you to
this thread which discusses the misguided concept of Democrats and liberals moving to the "center" to appeal to more voters.
Ultimately, I do not believe there is a new method of speaking that will compel these people, who simply focus on dealing with the myriad of issues that encompass their day-to-day lives, to turn out to vote. I think the best way of getting their attention and getting them to act is probably going to be to negatively affect their life - and that can be accomplished most readily with the constricting pressures of conservative policy.
Vote Republican. Read and regurgitate Ann Coulter, Michelle Malkin, Rush Limbaugh, Instapundit. Decry the oppression of the Tom DeLay's. Bask in awe at the machismo of Rumsfeld. Defend Halliburton. Go back in the closet if you are gay or mock gay people if you are not. Buy a gun or two or three. Get angry when the media shows the horrors of war - but only if the perpetrators are American. Remind everyone about 9-11, constantly, lest they begin to say: 9-11? What's that? Use the words "freedom" and "democracy" as if you own them. Protest abortion clinics. Convert to Christianity or if you're already Christian, use the Bible as the foundation of logic. Lie to yourself in order to tell the "truth" to everyone else.
The best thing for this country will be a Republican victory in 2006. The backlash the Republican's will create is the best hope at mobilizing the people that do not want to force their will on everyone else but have only been focusing on their own life. Take away their accepted life and they will have no choice but to fight back.
It will probably take longer though. So vote Republican in 2008 as well. Sometimes you need to slap someone to wake them from a stupor.