From the django-users mailinglist which I'm becoming more and more helpful in:

 > Could you share approximately how big your project is? I know it's
 > hard to find a real measure for this, but how about number of database
 > tables?

 A project I worked on over the summer used a Database that was 130
 tables, and getting 1gb updates every 2 minutes. I was witting a new
 web app to do calculations on the data and the company wanted to use
 Java since thats what they knew best and had spend huge amounts of
 money (1 mil +) to support with Sun Servers, and such. But I knew
 python and django would be a better fit for this particular app, but
 the boss wouldnt listen. So we had 10 Developers working on the Java
 version (Including me) and over 3 months we got it about 85% done,
 though it had no unit tests. During the same three months, I worked on
 my own time after work and basically had no life for the whole time, I
 was able to get the web app 100% complete with unit tests. That
 convinced my boss that Django was a good fit.

 The site is an internal app that I cannot give access to (And I
 actually had to get permission to give what info I have), but I can
 say that Django is a suitable framework for what you are looking for.