In May 2011, I had delivered a live webcast on the topic “Optimizing and Tuning Full Text Search for SQL Server”. You can download the slide deck (PPT) and Video from MSDN Event library. I am sharing it here since the webcast was before the birth of theSQLDude. Refer to the links below for downloading the presentation deck and webcast video.
Note: This talk covers using Full-text search only on SQL Server 2008 and above. 
Watch the Webcast
SQL Server Full-Text Search: Tips for Optimizing and Tuning Search for large environments from sudarshan on Vimeo.
Presentation Slide Deck (PPT)
You can download the slide deck along with the sample/demo script from [HERE]. It is also available on [THIS POST] @ SQLServerFAQ.
The SQL Dude! 