Ask HN: 'Virtual' team workflow?

I have recently been charged with building a virtual product team - on a scale which I've never been accustomed.

Curious what HNer's think are the best collab tools and methods for managing a pretty hefty design & dev team w/ multiple products. Currently I'm using Google Wave (yup), Google Sites, Pivotal Tracker, Harvest, Beanstalk, Skype, Dropbox... But so many different tools will be daunting at 15-20+ people. Thoughts?

Oh and how do I keep my sanity? Delegate to project managers?