Yes I know Fallout was first, I played Fallout 1 when it came out... a long time ago.

About the Critical Strikes, in fallout when you did a critical you knew it! the enemy would fall(or fly back) to the ground and lose APs(If I remember correctly <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />)

The "fall to the ground" strike, and the aimed shot strike worked nice in Neverwinter Nights <img src="/ubbthreads/images/graemlins/smile.gif" alt="" /> realtime too

Well this are just some ideas...

PS: Fallout had another great eyecandy, if you killed the enemy with a blow that was very powerfull he would die in a very "gore" way, head blows off, hole in chest with ribs showing, etc.