We've all started somewhere, the Boxster is the first car I have ever worked on.
Here is a great resource: The 101 Projects for the Boxster by Wayne Dempsey of Pelican Parts, the sponsor for this board:
101 Projects for Your Porsche Boxster
You can download an owner's manual here (and plenty of other places too) if you don't have one:
http://jdmfsm.info/Auto/Other/Porshe/Owners%20Manuals/porsche_boxster_owners_manual_2000.pdf
The Bentley manual for the Boxster is very useful as well and they come up on ebay and on this forum from time to time:
Porsche Boxster, Boxster S Service Manual: 1997-2004: Bentley Publishers: 9780837616452: Amazon.com: Books
Good luck and have fun!
Steve