Dragon Age 2 - Everything You Need To Know @ IGN

...Except how the PC version plays. IGN has a preview article titled Dragon Age II: Everything You Need to Know.  The piece is based on playing the X360 version, of course, and is divided into sections such as "What's the Story?", "Importing Your Save", "The Art of War" and so on:

We haven't seen much of the PC version, but I was told that you will still be able to pause with the space bar and issue commands via the action bar. The biggest change is that the attack animations are sped up and much flashier than before, making battle scenes more visually interesting and visceral. So if you like instant gratification don't want to bother with babysitting your squad, that's an option. On the other hand, if you want to take a little more control over the situation you can do that as well.