Just wanted to say that I've bought some videos from Netwrkz2000 and it was a smooth and easy transaction. The DVDs are really nice pieces of history to have captured. TV broadcast quality (for the time) with good sound as well.
You (or anyone here for that matter) have any Grady tapes by chance do you? Specifically looking for his teaching tapes. I can pay for a copy if you don't want to part with an original VHS/DVD.