Redirect based on URL

Hello all, I would really appreciate some help on this one. I am developing a site that stores listings of tour operators in a database. A tour operator can also have their own page on the site - but again it will be stored in a database. What I want to know - is there a nice way to find a tour operators page within the site without having to enter messy paths and query strings? EG instead of typing: www.mydomain.com/tours/list.php?id=2 or www.mydomain.com/tours/list.php?name=gannetsafaris I would prefer something like: www.mydomain.com/gannetsafaris and having it redirect; or something like www.mydomain.com/?page=gannetsafaris How do I get this to work? Is there a better way? Regards, Matthew