Looks like Best Buy got a new batch of 360's at least for their online store... Seems that the increased production is starting to show as the "in-stock" frequency has been increasing. Good news for everyone who has been holding off :)

Microsoft Xbox 360 Core System B4K-00001
Microsoft Xbox 360 Core System B4K-00001

IN STOCK BestBuy.com has the Xbox 360 Console in stock for $400
IN STOCK BestBuy.com has the Xbox 360 - Starter Bundle in stock for $510
IN STOCK BestBuy.com has the Xbox 360 - Sports Bundle in stock for $580
IN STOCK BestBuy.com has the Xbox 360 - Gamer Bundle in stock for $590
IN STOCK BestBuy.com has the Xbox 360 - Live Bundle in stock for $760
IN STOCK BestBuy.com has the Xbox 360 - Ultra Bundle in stock for $860
IN STOCK BestBuy.com has the Xbox 360 - HDTV Bundle in stock for $1860