Wuargh. I've just played a few turns with the Greeks. There seems to be a problem with the graphics, the campaign is a tad slow, and battles are terribly slow. Or well, not sure if slow is the right way to describe it, my peltasts were flying over the map like supermen, but I could only move slowly, like it happened on my 10 000 men battle on MTW2. Not sure why, since RTR VII, RS II and Invasio Barbarorum all work smoothly.
On the actual game: The income is quite high (but then again I have many rich cities, so it should be), but there is also a lot to spend with so many cities. Some of them don't have a family member in them (Pantikapaion or Massalia for example) which I think they should since they actually represent different factions (they also need to be renamed since they are all still Spartans at the moment, but I guess you already figured that out=. The new unit models are quite cool.
As Cyprian has reported before, I was also able to bribe an enemy army with only 5000 denarii (6 or 7 Roman units, most of them town watches) which is quite cool (since it rarely ever worked before), but maybe the amount is a bit too low, if you can do anything about it.
As for later possession changes, the Ptolemies should hold Lysimacheia and Macedon should hold Argos.