cmM wrote:elbirth wrote:
and when you get used to using it, I'm sure it's much preferred in most instances.
It was much preffered even before, I just couldn't afford one. You can hold the camera steadier, plus you get a better picture (as good as it can possibly get) than the crappy 75K pixels or whatever you see on the LCD of a P&S when you compose the picture.
I've tried composing some shots through the viewfinder of my G3 (but the lens gets in the way sometimes because of the way it's made) and I can say that for the most part, it's helpful, though it doesn't have the rubber eyepiece around it like SLRs do... I'd love to get a 10D, but alas, I don't have that much money to spend on it 
And thanks Craig, that How Stuff Works site looks great!