I've tried the Keep a few times, but syncing has been down ever since I got in. Needless to say, I haven't tried it for more than a few minutes since the whole point for me is to customize my custom characters and not start completely from scratch.
Yeah, that was frustrating but I figured I would start from scratch anyway to get the hang of it. As it turns out it's really awesome. Very comprehensive in the decisions you can mess around with. I will be even more happy when I can go back and edit my existing characters to fix the decisions I regret.
One thing I saw in Keep that I didn't even realize could happen was Morrigan's baby, rather, what she gives birth to, if at all. Apparently it's possible that Morrigan has a normal child with the Warden, if they romanced, and the Dark Ritual was not performed. This would of course mean that the Warden, Alistair, or Loghain would have to kill the Archdemon and die. Funny that I'm still discovering new things about these games to this day.
Also, Dragon Age Origins is free on...Origin.
Also, I accidentally unhid your double post, so I rehid it, fyi.
That's all I got.