Graham,
I downloaded this message the day before I left for Saudi Arabia (7
March). I'm currently working on a multiple linear regression package.
I've also written a two-way ANOVA package. If you're interested, I'll
upload them when I get back (which will be when you receive this message,
of course.)
When I asked this question some time ago, I got a list of software that
was also available. I'm sending the message from Lu Beranek to you as
CMail.
Hope this helps and that it didn't take too long.
Steve