I am going to wait to see how well GOG updated GK3, since it is notorious for having problems with modern computers and video cards...ironically enough much worse then the first two.
I could never get Hardware 3D graphics with XP on a Nvidia card, and the software mode is really ugly...
BUt it is interesting that the game was doing the whole Sacred Blood routine quite a few years before anybody heard of the Da Vinci Code.

I've got it and would be happy to upload it somewhere unless that's not kosher.
Blood of the Sacred, Blood of the Damned: http://www.mediafire.com/?enmvjmwfd5z
and here's Sins of the Fathers too just for kicks: http://www.mediafire.com/?2go4etzzzzy
...

What I remember was being a bit annoyed swapping 3 CDs during game play with the copy I own. So I'll probably buy it again from GOG to make life easier. I don't think I ever got around to finishing it so maybe I will this time around.

A month ago, I never would have guessed I'd have all the GK games again as legit digital downloads. Hell yes.

They are already available as free downloads from a GOG sponsored site. You can get them & [url=http://www.oldgames.sk/en/game/gabriel-knight-sins-of-the-fathers/docs/]here.