There are lots of inexpensive HDV cameras you could buy, but if your PC is not up-to-date with Dual Core processors and 2GB RAM, you are going to have a tough time editing.
Premiere Pro can edit HDV if the PC is up to the task. Take a look at the Sony HDR-HC1 or HDR-HD3.
Canon also has a HV10 that might suit you. Just be aware that they are not as cheap as the Sanyo junk.
Steven
https://www.stevengotz.com