What is the best way to fetch the 'x' latest articles in the CMS?

[Yellow Slider]

I'm building a widget that will diaplay the 'x' latest articles on the forumhome.
for every article I need the following information -

• title
• url
• preview text
• one of the attachments (will be displayed)
• STAMP (for the date)

I'm going to use the datastore and a cron that will build the datastore every 10 min' to update the information, so there won't be any "heavy" queries on the front page for every refresh, just fetching data from the datastore (is there a better solution?)

is there a manual of how I should use the datastore in vB4?

I'll be happy to hear your solution for that.