Here’s a nice, clean and simple one-page persona template “shared by the folks at Orange Bus” presented here on the “Wireframes” blog of Linowski Interaction Design. Short and sweet, but captures some good core information about a persona. This would be a good starter for developing a set of usable personas. It’s in .PDF format, so you’ll have to re-create it in a file format that works best for you and your organization. Good to look at for reference at least.
The focus of the persona is to capture primary demographic info, the persona’s “back story,” motivations, frustrations and, “Their ideal experience” — all good things, and nicely captured as a one-pager.