Yes, probably a radio button property, one that give the editors the option to chose an item when creating/editing a page. I read something about XForms but not sure if that suits.
Create a custom property and use the PropertySelectControlBase as base for your edit control, or look at this:
Sorry, PropertySelectControlBase is for dropdowns, not radio buttons. So if you go for a custom property you must create it from scratch or go with the dropdown.
Thanks Magnus. I will need to go with radio buttons so will scratch something out :-)