No, you're not experiencing déjà vu. The
The HF11 is a higher-end linemate for the popular HF10; it adds a higher bit-rate 24Mbps recording mode and an increase to 32GB built-in flash memory, up from 16GB. (I'm not convinced you really need either; you'll have to read my review to see why.)
The hard-disk-based HG20 has the same innards as the HF10/11 and gets a boost to the 12x zoom lens from the HF series. It also gets a bump to a 60GB hard disk--to hold all those large 24Mbps bitrate files--1,920x1,080 resolution, and the ability to record video to an SD card. Its sibling, the HG21, grows to 120GB as well, plus it has an eye-level viewfinder and the better (though same sized) LCD that's on the HF11. As for the basics, they all have the same 12x zoom lens, 3.3-megapixel sensor and produce 1,920x1,080 AVCHD video.
All are slated to ship in September. The HF11 is expected to cost $1,299, the HG21 $1,199 and the HG20 $949.