Commercial version has higher radiation due to spec requirement, but probably close to consumer version since it's not cost effective to use 2 different types of internal organs for different models.
However, consumer version usually has the benefit of extra features like screen refresh or screen saver when still image is displayed after prolong period of time. NEC model in particular allow you to change your BNC input to component and double your component inputs instantly. There are numerous features that are not available on consumer version, but most of them are not really useful for HT use.
So to save money, commercial version is definitely the way to go.
As for resolution, 480P display is adequate when you sit 6'+ away from the PDP and SDE will not be visible.
However, consumer version usually has the benefit of extra features like screen refresh or screen saver when still image is displayed after prolong period of time. NEC model in particular allow you to change your BNC input to component and double your component inputs instantly. There are numerous features that are not available on consumer version, but most of them are not really useful for HT use.
So to save money, commercial version is definitely the way to go.
As for resolution, 480P display is adequate when you sit 6'+ away from the PDP and SDE will not be visible.