I can’t provide any web part advice, but I can throw in my two cents about your page content…
Have you outlined the following for your extranet?
- Target Audience
- Purpose
- Main Goals
- About the entry page:
- Is it just a stepping stone to the content they really need?
- Does it have a goal to deliver information and recent news and events?
- Is it supposed to be a place to find training, tech support and group contact info?
- What is the expected time spent on the entry page?
Once questions like these are answered, you can better determine content. My thoughts on what you listed:
- web part for team site listing
GREAT!
- password expiration reminder web part
How often does the password expire? If it is only every few months or so, this may be wasted real estate on such a high profile page as the entry page. It could be pushed down to the bottom of the page or pushed off as a link in the navigation somewhere
- targeted news web part –
If the purpose is to spread info and news, then this is a good idea but you may run into frustrations targeting the news and it will require more content maintenance. You could try a general news list to begin with and see how well that is used before launching into targeted news.
- SharePoint related training
This will only be good for first-timers. After that it may be wasted screen real estate. Definitely worth having, but maybe as a navigation link instead.
I would recommend you put some mockups together and pass them around to some coworkers and get some feedback about what they would like to see and what they think.