Screen Sharing to Windows (was Re: [X-Unix] SSH and GUI apps)

[TjL]

Since this is sorta thread-hijacking I figured I should start a new one.

Is it possible to

a) screen share from 10.5 to a Windows XP machine via VNC over ssh?
Anyone done this?  I've got a few Winboxen that I have to look after.

b) If I setup Bonjour on Windows, will those machines show up on the
Screen Sharing list ? (assuming you've enabled them as mentioned at

http://www.macosxhints.com/article.php?story=20071030092325625