Hi John,
Thanks for all the useful info.
I'm actually considering getting the Ten-Tec Argonaut rig and programming it
with a computer.
It seems to have an interface for psk31 already built in.
I had understood that Ham Radio Deluxe had a module for psk31 in it.
When I get closer to making a purchase I'll get back to you for more info.
I also know that Turtle Beach makes a very good usb sound card.
I'm using an hp Pavilion of some sort with Jaws version 8.
It has an internal sound card.
Eric
KU3I