Here’s the differences on the GY-HD110 and GY-HD200 from the JVC site:
Everything the GY-HD110U has plus:
* 14-bit A/D (better highlight, shadow, & color gradations)
* New DSP (improves picture accuracy)
* Wide band analog front end (lower noise, better low light, sharper image)
* High speed Super Encoder (enables 50p/60p recording)
* New cross converter outputs 1080i from live or recorded HDV
* Image inversion (HV flip) for prime lenses
* White shading adjustment to compensate for differing lens characteristics
* Pro Anton/Bauer battery mount (basic battery & adapter not included)
* 6-pin remote control connector
* 2-year warranty (parts) 1-year (labor)