How can I provide help to users with List values? Descriptions?

All-

We are looking for a way to educate our users as to the purpose/description of attribute list values, so that they are more likely to select the right value (e.g., failure modes, Change Order reason codes, etc.). We have training materials, but would like to make this information more readily accessible while users are selecting them.

Does anyone know of a way to provide this information? I see that list values (in the Java-Admin client) have descriptions, but I don't know of a way to get them displayed in the web client when the list is being used. (It would be very nice if the description was displayed during 'hover over' in the web browser.) Thanks,