Plainview is a full-screen browser based on WebKit specifically for presentations or situations where seeing browser chrome is undesirable. (I don't know, maybe you're making a presentation about oil.)
It's wonderfully simple: Starting the software shows the Plainview start page. Enter a search term, or press command+L and you're off. Plainview has a set of key combinations to help during your presentation, and you can control-click anywhere to bring up a contextual menu. It can even import your Safari bookmarks.
Saft can do this, I know, but if you don't like InputManager hacks, then Plainview is for you.