XNAI just got word (through my free subscription to the Connect program) that XNA Game Studio Express Beta is available for download at the Microsoft Download Center from the location at this link

You may be interested in a discussion in the XNA Team Blog about the XNA Framework Content Pipeline.  It includes video goodness.

Just in case it helps, here's that list of XNA Studio resources again: Here the XNA Developer Center, XNA FAQ, XNA Game Studio Express Forum, XNA Framework Forum, XNA Team Blog, Mitch Walker's Blog, and Tom Miller's Blog.