OK, I am not a newbie as far as CMS's are conerned. Though I have only used Drupal and never used joomla or Mambo but I understand them. After using Drupal I felt that it may not be suitable for a huge site which I am looking to work on. I have never seen a very big site which runs on drupal as well(250k uniques/month). On my site there is going to be lot's of content and I have to edit it alot as well as monitor it, so I want the best and easy to manage system. Regards
I've never used Drupal but I have built some large Joomla sites. You shouldn't have a problem as long as you're using a dedicated host, have the application cache turned on and use a php code caching system like eAccelerator.net (there are other php cache products also but I only have experience with this one). As the site traffic grows, if performance / response times become an issue you can always throw more hardware at it or even hack the core to tune Db or reduce the volume SQL queries. My wife (not technical at all) manages a Joomla site with over 250 categories and thousands of documents with no problems. -jay