[ChrisZang]

Depends on your experience level
Wayne's book is basically "Boxster Projects for Dummies" and it gave me the confidence of tackling projects that I never had dared to attack with the Bentley

So far I've done:
* deep sump install
* underdrive pulley install
* upgrade to 996 cluster (and such "hacks" aren't even mentioned anywhere else)

and very soon I will attack (as soon as the parts arrive):
* low temp thermostat
* water pump replacement

And from my point of view: Wayne's book is much closer to real life as the Bentley