Not a cent at this moment. I am still learnig my E-500 and so far I am happy. If it would die on me, I still have about one year warranty. Once that is over I would say about US$2k is what I am prepared to pay for a new body if it is a pro body and fulfills all MY demands. I know 2k is not much but I figure if Oly will release a new body now it will be cheaper and still very good in one year.
I may of course change my mind and get one from the day it is released here in Sweden, all depends on the camera. If it is very good and really meets ALL my demands I may even increase the 2k.