im looking for what is or sounds like a meteorite falling and crashing and police/ambulence/fire truck sirens...

any help is greatly appreciated

im looking for these sounds too , try a torrent or maybe youtube.

you can make crazy sounds by resamplping mad fx on almost any kind of sample

http://www.megaupload.com/?d=SRHYZ5S1

all the sounds from half life and half life 2

go to the environmental sounds, you get lots of pounds and crashs and metallic goodness

not sure about sirens and stuff...BBC has a notorious sound pack used in films left and right

ya know i played through hl 2 again just so i could get some samples, but i got to distracted by the actual game to pay attention to any samples =p

they're downloading now, thanks!