The next question on the first steps of this project is why Drupal? I could say lots of things, beginning with this is the first I came to from I like PostgreSQL but the very truth is I came to an interesting article which read:

A very common question from Beginners is whether I should choose Drupal or Joomla or other CMS?

I had to make this tough decision 2 years back and I thank myself everyday for choosing Drupal over other CMS. I am glad I did not quit when I found some things difficult.

Drupal has a superior architecture and very SEO friendly. It can cater to your needs, it can be used for a simple FAQ site or a very large million visitor site.

Here are some Key pros and cons of the two systems.

Drupal

• Rock solid & high quality platform

• Real multi-site-feature (only one installation for several sites)
• Any Kind of user groups & user permissions, OpenId compliant in Version 6
• Can run membership and community sites, not only CMS etc
• Powerful templating system. Any XHTML or CSS template can be easily converted to Drupal.
• Drupal needs a little time investment to realize all the huge possibilities of Drupal
• Clear, high quality code and API (easy to integrate with other solutions etc)
• Flexibility and no known limitations
• Many high profile sites use Drupal (e.g.: MTV UK, BBC, the Onion, Nasa, Greenpeace UK, New york observer. )

Joomla

• If you are not techy its good to start

• Easy install & setup with your mouse
• Easy learning curve
• Cannot integrate other scripts etc. to your site
• Generally you cannot create high-end sites, without investing huge amount
• No SEO out of the box, URLs are not search engine friendly.
• Server resources utilization is more compared to drupal
• Only one site per installation
• No Single Log-in to several sites
• No User groups & permissions
• More intuitive administration user interface
• Some polished modules for things like calendars, polls, etc.
• Modules cost you money

Of course this is another To Do more on the benchmark list but nothing better to say why before testing.