You might want to check out Perlfect Search 3.20. I had it up and running after only a few minutes and it's fairly customizable. There are other, more customizable alternatives out there, but I liked that over some of them because you can either walk directly through your documents or use it to spider the Web site via http and thereby pick up your dynamic content, too. Oh, and it's open source, too :)

Cheers,
Ovid

Join the Perlmonks Setiathome Group or just click on the the link and check out our stats.