A while back I asked the same question about manuals, Pete. I think it is really strange. Somewhere out there is a guy who has a house made out of Boxster manuals, I just know it.
Tweek's has the manuals. I would guess they are a little cheaper than the dealer.
http://www.tweeks.com
Do you have the radio manual, guenzak? It is a different book from the owner’s manual. I've seen a few posts around on the net saying you can download one in PDF however; the only one I found wanted $15 bucks for the download. Anybody out there got the pdf? I guess it would help to know which radio you had.