I'd go with the ERA rear too. That was the one upgrade that I did not get on my car that if I could do it over again I would get, if for no other reason than ease of bleeding brakes and changing pads/rotors. There is nothing at all wrong with the standard inboard brakes, they work perfectly fine, but outboard brakes would be much easier to service.
And give some more thought to the leather seats, they are nice.
