Changing Domain Name without Losing Rankings?

what can/should I do?

[skunker]

Hey folks,
I have a PR5 site that is ranked 1-2 for my main keywords in Y, MSN, and Google. I have outgrown the scope of my domain name and now I want to change the domain name to reflect broader content of my site. Therefore, I want to change the domain name.

What is the best way to do this without losing my excellent SE rankings? A redirect?

Thanks for any tips/advice!

[MaximS]

Buy a new domain and make a site without terminating current one. After your new site is up redirect surfers from old site to the new one. Don't forget to redirect only people. Robots must see ordinary page.