Web Crawler

I'm looking for a Perl programmer who can create a web crawler (aka spider) for me. I'm building a basic search engine, but can't spend the time completing this portion of my project. I have certain requirements that need to be implemented, and certain modules I would like you to use to make the code easier for me to understand and edit if I need to add other functions later. Please contact me for more details before bidding if you are concerned about the requirements.. but if you have done this sort of thing in the past then you will just need to tweak some of your existing code. :) Just a heads up- I would like the code to be thoroughly commented, and for you to be available to discuss the code & make changes if things aren't clear.