Hey guys, I am currently looking at some quality site search scripts (php) on the market and wanted to see if any of you had some opinions on which one I should get. Let me know if you have had experiences with any of these site search scripts and/or heard anything about them. I am not sure which one is the most highly regarded. Thanks!

Site Search Pro
http://www.site-search-pro.com/

Zoom Search Engine
http://www.wrensoft.com/zoom/

Interspire FastFind
http://www.interspire.com/fastfind/

..any other recommendations?

The best INMHO: PHP Dig (http:www.phpdig.net)