I'm a little late to the party on this, but if you've never seen it before, you have to check out Batting Stance Guy.
Here's his take on the Twins. Only 2 current players (I'll just let you guess which two), which is a little disappointing, because I'd love to see him take on the Carlos Gomez bat-kissing, and wild knock-him-down swing. Still, pretty funny. He has Torii's number. And the Kent Hrbek bit at the end is solid gold, baby.
He has a ton more teams' stances on his site, all worth a giggle.
[Edit: Do NOT miss the '08 All-Stars Starting Line-up edition. Joe Mauer's stance is so much funnier in that one.]