Should I use replication, BCP, DTS etc. for the following scenario?

Hello all.  Here is what I have.  I have a Web Server that has a table with only two fields.  I want to update this table on a weekly basis on Sunday with only one field from a large table on my production database.  The production database table has over 4 million records.  I was thinking of transaction replication but it asks me to select a table etc.  I have set this up in the past but I think it did the whole table etc.  I want to keep the tables consistent as well.  Should I use transactional or snapshot or BCP a text file over to the Web box etc.  I never used BCP before but I know its a bulk copy.  On the Web server there is already a DTS package setup to load in a CSV file.  Thanks all