[j.fro]

Drain the oil. Does it look like chocolate milk??
Drain what's left of the coolant. Does that look like chocolate milk??
If either of these answers is yes, you've got a cracked cylinder head. $4k At the very least, if not more. There are a lot of "while you're in there" items that really add up. Once you are done, though, you'll have a great car.