VERY different cameras.

The DVX100 has been around for many years, does standard definition DV and DV widescreen only.

The HVR-Z7E is newly released, does standard definition DV and DV widescreen and HDV and has a very cool interchangeable lens system.

"AG-DVX100BE is good enough"... for what?

Both are fine camcorders - each with their strengths.