Both the Panasonic PV-HD1000 D-VHS unit and the DST-50/51
units have been discontinued. Your best bet for acquiring these items is to check eBay, but be warned that you will pay a heavy premium as these toys are in heavy demand.
A used HD1000 sold on Ebay a few days ago for $1600!!
Another suggestion: you might want to check local electronics stores to see if they still have any left over. I was lucky enough to find one recently for $400; no one at the store even knew what it was!
[This message has been edited by Nick B (edited 08-16-2001).]