water pump squeak

So, I just replaced my oil filter housing gasket. I didn't notice anything out of the ordinary, like coolant leaks or other oil drips. All the cooling system parts were in good shape. I did replace the water pump/alternator etc. belt, which was cracked. Soon after that, I started hearing a...

Here is my video of my E46 330i 138k miles This is a ***330i*** NOT a 335i Cameras make me nervous!!!! http://www.youtube.com/watch?v=d_DjqZejTmg I'm almost 100% sure that the water pump has gone out on it but these dang german cars throw me off sometimes. The alternator, all the pulleys...