Some people think traveling to international destinations is out of reach financially. Here is a list of companies that offer tours for decent prices. Check out sources like Oyster.com http://www.oyster.com/ or Trip Advisor http://www.tripadvisor.com/ for customer reviews, ratings, and tips on their trips.
Foreign Indepdent Tour – http://www.foreign-independent-tours.com/
Friendlyplanet – http://www.friendlyplanet.com/
Gap Adventure – http://www.gadventures.com/
Gate 1 Travel – http://www.gate1travel.com/
Globus Travel – http://www.globusjourneys.com/
Intrepid Travel – http://www.intrepidtravel.com/
Smartours – http://smartours.com/