does anyone here have any experience with hooking thier powerbook up to an external monitor (20'' or 23'' apple display). i am looking to get a powerbook and the new external monitor, but i do not want to drop all that cash if the powerbook is not going to be strong enough to run the external display properly. The 12'' only has 64mb of vram, i dont know if that will be enough or not. does anyone have any experience with any of this?