According to the online retailer, "demand for this item is so great, we anticipate selling out very quickly." Thankfully, you'll have a slight edge over others who may be browsing the site. The bundle will be available at 10AM PST (1PM EST) tomorrow. Get your F5 buttons ready -- and g'luck to all of you.
Update: Please note that the system will be $499 when it is available tomorrow. Any prices you see right now are third-party resellers that are free to charge whatever they want to -- and they want to charge a lot.