http://floppydays.libsyn.com/ (also available on iTunes for you apple people) has been focusing on my favorite little computer: The Texas Instruments 99/4a home computer.
Episodes 49, 50, 51 AND 52 are bits of history, available equipment and new technologies including the items sold here at arcadeshopper.com.
http://floppydays.libsyn.com/floppy-days-49-ti99-interview-with-jim-fetzner-and-mark-wills
http://floppydays.libsyn.com/floppy-days-50-ti-99-history
http://floppydays.libsyn.com/floppy-days-51-ti99-tech-specs-modern-upgrades-with-tursi
Also lots of interesting information and links on other personal computers from the same era can be found on the site..