Do you have any screenshots?
Sorry, I don't. But, there's one in the thread where I originally got the idea from (an AMXModX plugin that has the same effect) -> http://forums.alliedmods.net/showthread.php?p=832189
/ this screenshot -> http://img36.imageshack.us/img36/2046/desurvivor.jpg
As far as the new snow efects: Instead of the big ugly sprite blobs that were originally used for the falling snow, I used the same method that was used for the CS:CZ "de_Vostok_CZ" and "cs_Office_CZ" maps ("env_snow").