found a 99% solution - MediaMonkey
I've been testing the free version of MediaMonkey and so far it has done almost all I need it to do...
- access internet for CD info
- export database to Excel, plus configure which fields I want to export.
- Along with the predefined fields, there are several custom fields. They are sortable too.
The only option I havent found is to import from Excel. But that is not possible with Collectorz too.