VanossGaming is a nice gaming youtube channel.When all of his play together in a game they create really funny and awesome moments.

Aavak is pretty good too.

EDIT: and he has got ferrets. :)

I'd strongly recommend Mark Brown's "Game Maker's Toolkit" and Danny O'Dwyer's "Noclip" if you're interested in in-depth analysis of videogames from a design, art, media, and production perspective.