I had 12 hours to think about how I was going to attack this beast. Based upon my fears about rush hour traffic and the possibility that I'd arrive at Jing'an Station, only to search in vein for taxis, I decided to pursue the Maglev to Line 7 approach, which would put me within 2 blocks of my destination.

Here's the rundown:

4:54p: touch down
5:01p: leave the plane
5:10p: clear border control
5:15p: grab bag (third off the belt!)
5:29p: board Maglev
5:32p: Maglev departs from PVG Station
5:40p: Maglev arrives at Longyang Road (side note: even though this was a prime time train during Expo, top speed was only 301 kph... but, journey was a mere minute longer than the 440 kph trains)
5:55p: board Line 7 train
6:28p: disembark at Changping Road Station
6:54p: arrive at destination

Notes:
-I didn't have to lug my bags up/down stairs at any point; apparently, all stations have elevators now, but finding them probably cost me 10 minutes
-assuming we use 5:25 pm as my airport departure time (on bus or taxi), it appears that I made the wrong choice
-much of the blame is due to the fact that Line 7 takes 30 minutes to get between Longyang Road and Jing'an Temple, whereas Line 2 does the same in ~20 minutes
-but, if I wanted to go Jing'an Temple, I would have been better off on the bus (presumably)
-transferring from Line 2 to Line 7 is unpleasant
-I suppose I should be proud of the fact that I made it all the way to Longyang Road within 46 minutes of touchdown, but much of this is due to the fact that my Maglev train departed 3 minutes after I boarded it (average wait is 10 minutes)
-while I could have jumped in a taxi at Longyang Road, I doubt this would have helped me in the end
-If I had to do it again, I'd probably opt for the straight taxi option (in this situation; for later arrivals, the calculus is different)