Hi,

that one tends to be a little unstable, but if it works for you...
I have a Macintosh and I haven't found anything better. There is
MacSpice, but it does not have a way to graphically build circuits.

embedded java? *
It does have source code, so you might be able to figure it out by
stepping through the code while that circuit is running.

open a pipe to an instance of spice?
I'm new to this. Any tips on how to do that?

thanks
Jeff