Here's one that at one time had the most complete collection.
http://www.ar15.com/forums/t_1_5/1359984_Unofficial_Shootout_Video_Thread.html
I study ballistics quite a bit.
9mm with good ammo (HST, GD, Ranger-T) will be 90% to 95% as effective as 40sw. The primary differences/benefits over 40cal will be cheapness of practice ammo, and higher mag capacity.
I personally carry a 9mm Glock 19 with HSTs and don't feel undergunned.
If you want to go further, look into underwood ammo's 147 grain gold dot +P+ ammo. Hottest, best 9mm ammo on the market, has more energy than most 45acp in production by a very large margin.
For further reading , check out articles by Doctor Martin Fackler.
Also , this is a very good video on GSWs by a doctor -
Shootouts are messy things that can often be random. I can show you instances of guys being shot 10, 20 times and live in the end, and other guys who get shot with a 22 and are DRT.