I second ronlhodges' comments. Avoid any of the Sony's new 250 or 260-series cams. The CA as he's already explained is really bad, especially in the tele range. They may be advertised as having 20-30x zooming capability but how good is a great zoom range with such poor image quality. Sony must be thinking people who buy camcorders in this price range see the extra magenta, cyan, halo effects etc. as something normal.
I'm not sure about the Panasonic, though. Try before you buy.