Hey all,
After putting the new starter in, I guess I must have convinced myself that the electrical drain problem was solved. Not so.
More recently, after hammering the battery every night with a 6A charger for a long time, the battery finally gave up and Sears swapped in a new one on warranty. That battery was drained so low as to not even bump the starter after one night (sans charger).
I had picked up a refurbed Bosch alternator a while back, which was in a box on the garage floor because I never got around to installing it. The car went to the local SD Porsche dealership and they tested away at the system trying to find the source of the 3A drain. Turns out it was the alternator all along!
The car starts like a freaking champ now -- new battery, new alt, fresh starter. Life's good. Wife is happy (it's her car) ...