> Postresql, mySQL, and SQL Sever all have a 'TEXT' field type.
> This type of field is bascially for free form text entry of
> undertermined length.
> What would the best
> equivalent for IB/Phoenix be? A large varchar? i.e. varchar(3200)?
> a bLOb SUB_TYPE TEXT?

You can find short comparison of blob vs. varchar here:
http://www.volny.cz/iprenosil/interbase

Ivan