Discount International Airfares: Where Are Good Places To Look

[Skullfucked]

I am looking for sites that offer discount or inexpensive international airfares.
This would from the USA to ASIA, South America,Europe,ect.
I am going to take a vacation sometime this year and want to see what I can come up with.
Also let me know your experiences,what you paid,where you went,ect.

 

[Bob Smith]

My typical favorites (albeit Ive only used for domestic travel).

Hotwire,
Priceline,
Travelocity