Adding A Full Text Search Across Multiple Tables (with Text Fields)

Hi, i'm trying to do a full text search on my site to add a weighting score to my results.  I have the following database structure:

Documents:
 - DocumentID (int, PK)
 - Title (varchar)
 - Content (text)
 - CategoryID (int, FK)

Categories:
 - CategoryID (int, PK)
 - CategoryName (varchar)

I need to create a full text index which searches the Title, Content and CategoryName fields.  I figured since i needed to search the CategoryName field i would create an indexed view.  I tried to execute the following query:

CREATE VIEW vw_Documents
WITH SCHEMABINDING AS
SELECT dbo.Documents.DocumentID, dbo.Documents.Title, dbo.Documents.[Content], dbo.Documents.CategoryID, dbo.Categories.CategoryName
FROM dbo.Categories INNER JOIN dbo.Documents ON dbo.Categories.CategoryID = dbo.Documents.CategoryID

GO
CREATE UNIQUE CLUSTERED INDEX vw_DocumentsIndex
ON vw_Documents(DocumentID)

But this gave me the error:

Cannot create index on view 'dbname.dbo.vw_Documents'. It contains text, ntext, image or xml columns.

I tried converting the Content to a varchar(max) within my view but it still didn't like.

Appreciate if someone can tell me how this can be done as surely what i'm trying to do is not ground breaking.