This is Kari Byron of the Discovery Channel's "Mythbusters." I wish I could've found better pictures of her, frankly even the FHM shots below I don't think do her justice. She might just be one of those women that doesn't photgraph as well as she should.

I think the reasons I really like this chick are:

1. She's a redhead. And we're all in agreement I think that redheads are either really smoking, or make you recoil in horror. Kari is smoking.
2. She can build and fix stuff. Smart chicks who can actually use tools instead of just trying to hold the world together with duct tape like me are a turn-on.
3. She's comfortable around nerds. I mean, she comes across like the girl from the engineering department who could probably date the captain of the football team, but give the tech geeks hope they might have a shot at her.
4. She can chill beer with a fire extinguisher.

And here's a N really SFW one for good measure.