I get asked a lot which web cam to use and my answer is simple.  Use either the Logitech Quick Cam Orbit or Fusion with the Logitech Quick Cam Ultra being the absolute best... and connect to a USB 2.0 port.  If your computer doesn't have a USB 2.0 port, buy an add-in USB 2.0 card.  Even without broadband, the image quality is unbelievable.  Excellent video, low-light balancing and incredible built-in microphones (Ultra & Fusion). 

• http://www.webcamsearch.com/links/cgi-bin/frames.pl?id=10671 Bogotá webcams, see the traffic at 100 St., 15 Av. in Bogotá. Located at Imagine's office. 60 second updates.

• http://www.webcamsearch.com/links/South_America/Columbia/ Webcams from different cities in Colombia.

• http://www.caribenet.com/webcam/  This Cartagena webcam is sponsored Hotel Kokomo, Rosario Islands Beach Resort.

(Please report more if you know of any)