I am not sure if it is a good idea to want "...a lot of electronics" if what you want is a reliable car. [?] I thought it was just one or two problems with your SL600 and they were fixed weren't they?
Mercedes itself has admitted a BIG part of their reliability headaches came from the stupid electronics. IMO, you want a car that has LESS electronics and has systems that have been well-tested in the field.
I tested a couple of Jaguar XK8 convertibles and they actually drove better than the SL and the seats were very comfortable. I wasn't keen on the ragtop because we have major snow in Ontario, Canada and I wanted a 4-season car. But you live in CA so a ragtop should be less of an issue. They also have the supercharged XKR version which is 390 HP and looks very nice and aggressive [8D]. The dealer only had one and it was the owner's car. The Jags drove very nicely and that model has been out for some years. It also has a classic shape in keeping with its clientele and I think this is the car you want to take your woman out in. The only question in my mind is how committed Ford is to sustaining this marque.
http://www.jaguarusa.com/us/en/vehicles/xk/overview/models.htm
There is also the Aston Martin Vanquish S mentioned earlier. I walked up to one downtown and saw the owner drive it around. It is incredibly beautiful - blows the Continental GT away without any doubt. The GT is actually quite ugly in a Rolls way. But not the Vanquish, it has perfect proportions and form. And it's a V12 with 520 HP and normally-aspirated. I understand it is like $50,000 more than the DB9 but it should not cause a problem for you. The DB9 pales a lot when put next to the Vanquish. I have no idea about reliability though. Of course, it's not a roadster. Here's a link to it in case you haven't already looked:
http://www.astonmartin.com/thecars/v12vanquishs
My impression of the Bentley is that it is really a rebadged VW W12 Phaeton in 2-door format. That's not necessarily bad but I think The Jaguar and Aston Martin designs are clearly more original and unique. I mean, do you want to pay that much for VW technology? VW does not have a good reliability and durability reputation. I had a new VW Scirocco when I first started out working. By recent industry accounts, I would never buy another VW again. They simply do not build cars to last - BMW emphatically does. And the GT is a new, untested designed.