Using Drupal For Company Intranet; What To Expect?

jjbliss writes "I am in the beginning stages of setting-up our company intranet. I have done some research and think that Drupal is the right CMS to use for this as it is very rich-featured, free and open-source yet well-supported, has a broad user and development community, and seems to be customizable to the degree that I need it to be. My question for Slashdot is who out there is using Drupal for this purpose? What have been your biggest issues in getting up and running? What should I know going into it? I am fairly proficient with HTML, CSS, Javascript, LAMP, etc. What sort of learning curve will there be in developing within Drupal? Are there any experts out there that we could bring in when I hit a problem that is over my head to fix? Where do you recommend finding them?"