I for one am excited about multi-channel funnels which will be a feature of the new Google Analytics v5 update.

It's in a limited pilot at the moment, but when available to everyone it will be really useful particularly for showing clients things like how effective their PPC camapigns really are.

If you haven't heard of it yet, there are a couple of good write-ups (with screenshots) here:

Introducing multi-channel funnels (http://econsultancy.com/uk/blog/7436-introducing-google-analytics-mult-channel-funnels)

Multi-channel funnels & assists coming to Google Analytics (http://searchengineland.com/multi-channel-funnels-assists-coming-to-google-analytics-72833)

I hope it's rolled out to us all soon!