Not sure if those big scenes really need to be so big or whether you can't reduce the detail e.g. on things far away. Also, the GFX card vendors will make the card memory bigger I guess. If there is 2gb on a card today, it will be 4gb next, and 8gb the year after.. I also think they should stop their piracy obsession, but on the other hand I can understand it. My product went to rapidshare after 2 days being here on rendo, and this is indeed frustrating. I  bought the octane beta and I really like to be able to fly through the scene and edit the materials while it renders. This really speeds you up.