Introduced at CES 2009, the Sony Handycam HDR-XR200V has subsequently been replaced by the HDR-XR350V. The 2010 model incorporates a larger, backside-illuminated Exmor-R sensor--the newer sensors have displayed much better low-light video quality when tested in other models, like the HDR-CX520--as well as a larger 160GB hard drive. The lens is a bit shorter, however: 12x compared with the XR200V's 15x.
If you're looking for something at the same street price of the older XR200V, the 120GB XR150 uses the same sensor as the XR350V and goes a bit overkill on the 25x lens. However, it doesn't use the higher-quality G-series lenses that are on the more expensive model; then again, the XR200V didn't use them either, ultimately making the XR150 a pretty close replacement. The XR150 doesn't incorporate GPS, but with a lack of supporting industry standards for the data generated, that capability isn't quite ready for prime time, anyway.
In 2010, Sony also made the move to add support for standard SDHC memory in most of its products in addition to its proprietary Memory Stick Duo. Yet another reason to forget about the XR200V.
Check out our picks for best HD camcorders.