On our current (EOL) FusionBB platform we have a highly customisable 'particle box' feature. They can be enabled/disabled, positioned left, right centre etc via the ACP. There are default ones plus ability to create custom boxes. Lastest topic, gallery posts (not 'gallery' as most admins know it - Fusionbb had function to make a forum node function like a gallery to a certain degree), Shoutbox, Recent Members, Online Now were standard, rest are custom.
What add-ons would be best to achieve similar functionality on XF? I would like to be on 1.4 when we go live.