In late March I am going to visit an archive out eastwith the express goal of getting information on (in order) NERVA, Solar Power Satellite and early Space Shuttle concepts. I will be in the archive for a full five days, and I expect that I'll get quite a haul. If you want in on this, check here:
http://up-ship.com/blog/?p=13300
http://up-ship.com/blog/?p=13300