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Screencasting your tech talk (Score:1)
I've recently been playing w/ screencasting, and I gotta say, its pretty fuggin kewl. The s/w is FOSS, not as spit & polish as commercial stuff, but very effective.
Obviously, you'll need a mic and whatever presentation s/w you use; note that the codec for this is for fairly static content, so avoid including Indiana Jones action sequences in your presentation!
To setup for screencasts: