can I do this, idiot question

[2catstango]

Hi,
I work for a small company that has a website. The website is going to given a facelift/redesign and the design company wants a site map. I have to make a site map of the current site in order for to show what needs to change and how it should be. I need a index tree of pages showing the click path and the links on each page. for example, link A1 on the index page leads to page A1. On page A1, there is B1, B2, and B3. On B1, links to C1, C2. On B2, links to D1, D2. So on and so on.
I can'y put anything on the web site server. I will have to put it on a machine at my house and spider from home. I can set up a freebsd/apache/php/mysql machine.
Will PhpDig do this? Is PhpDig overkill? Is this going to be more trouble than it's worth? Is there another way?
thanks