Today the Expression team is delighted to announce the availability of a preview version of Expression Interactive Designer. This preview version is the January 2006 Community Technology Preview 
We have compiled a set of sample applications and tutorials specifically for this CTP and you can find them on the official Expression team blog .
There are lots more resources about Expression on the Microsoft Expression web site. 
If you enjoyed the previous Channel 9 video  featuring the Expression Interactive Designer team then you'll want to check out the new video Robert Scoble hosted and posted today