Porsche Parts Catalog?

[jyl]

I'd like to get a parts catalog showing every part for the various years of 911 (including my 1989 3.2), hopefully in exploded diagrams.

I gather Porsche used to sell this in book form, I've heard of but never seen this in CD-ROM form, and I suppose dealers have this in microfiche form.

Which of these options is most useful, affordable, and available? (I'm thinking the microfiche is impractical for an ordinary Joe.) Any suggestions of where to find it and how much to pay? PP says the book is NLA.

(I'm tired of mumbling "you know, the thingy that goes back there".)