Along with the costlier HG21, the HG20 is a replacement for Canon's older HG10 model. The increased bitrate is all the rave, but this capable camera also has a roomy 60GB hard-drive and a 12x optical zoom. If high-definition is your gauge, the HG20 records in full 1920 x 1080 HD. Perfect for HDTV show-offs!
What's the difference between the HG20 and the HG21? The HG21 has double the hard-drive space, a swiveling LCD display, and an optical viewfinder. Oh yeah, and it's more expensive too.