We're starting down the road to swap either a 3.6 or 3.8 for the blown 3.2 in a 2000 Boxster S. From extensive reading, we understand that the hardest part of this swap is getting the electrical system components to work properly (instrument cluster, DME, ABS, HVAC, etc.)
If anyone has done this swap on a 2000 S successfully, we'd love to talk to you.