I found this on IGN and its really cool.
http://cube.ign.com/articles/524/524138p1.html
It sums up every Resident Evil game so you get the facts. (It was made before #4 so you wont be learning anything new.)
Now lets add #4 into the mix. What do you think will happen next? Who will we get to play as? What is Wesker up to? Whos side is Ada really on? Thoughts?