SQL Server 2005: Full-text search on a multi-lingual table
When creating the index, it is possible to specify a "LANGUAGE" argument.  Within the description of the "LANGUAGE" argument is the following:


  For non-BLOB and non-XML columns containing text data in multiple languages, or for cases when the language of the text stored in the column is unknown, use the neutral (0x0) language resource.


Then, when doing a search using FREETEXT or FREETEXTTABLE, once again use the "LANGUAGE" argument.  Microsoft defines the "LANGUAGE" argument as follows:


  Is the language whose resources will be used for wordbreaking, stemming, and thesaurus and noise-word removal as part of the FREETEXT query. This parameter is optional and can be specified as a string, integer, or hexadecimal value corresponding to the locale identifier (LCID) of a language. If language_term is specified, the language it represents will be applied to all elements of the search condition. If no value is specified, the column full-text language is used.


So, I will use one catalog and one index on the multi-lingual table using a neutral language resource.  Then I'll use the appropriate language setting when searching so everything is parsed correctly.