Through Travelzoo, we got a round-trip ticket to South Africa for $500 through Iberia airlines. By the way, the food on Iberia Airlines is great.
What Travelzoo does is poll all the travel web sites on the web for you and collects the best deals and presents them to you in a weekly e-mail. Travelzoo itself does not offer any travel deals. I guess they just get a cut of whatever they advertise.
I used to spend hours trolling travel web pages and just did not find anything that beat what Travelzoo found.
The next big vacation is going to be to Costa Rica, I think. My husband has been bugging me to go there for two years now.