With all the talk about the rumored G5 upgrades, and the expected price drops on other models, anyone know if the G4s will see price drops as well? I can't afford a G5, but have my eye on a G4 system. I don't want to jump the gun if there might be a drop in price next Tuesday. This would be a purchase from a reseller, not directly from Apple, and a new unit, not a refurb. Any insight?