Hi i am looking for cgi or perl scripts to offer seo tools on my site, does anyone know of a good bundle of scripts or even better where to get them cheap/free.
i am looking for things like

Keyword Research Tool
Search Engine Position Checker
Link Popularity Checker
Keyword Analysis Tool
Search Engine Spider Simulator
Meta Tag Generator
etc...

Thanks for any help

have you looked through this thread?

http://www.webhostingtalk.com/showthread.php?s=&threadid=221985