blown head gasket?

I am not sure what just happened to my truck. I just drove it around town without any problems. It had been sitting in my driveway for about 1 hour. I tried starting it up, and the engine would barely turn. Then, i heard the sound of liquid squirting / gushing. The engine will hardly crank. The was no liquids leaking out of the car. No smoke. The battery is good, i had it tested, and the oil checks out clean (not milky)...

Any ideas as to what happened?
Blown head gasket? Starter problems?

Sounds like a head gasket leak, all right. Pull the plugs and spin it over, coolant will probably shoot out one hole. Don't turn it with the plugs in, you can bend stuff easily if it hydrolocks.