I used to bunk RE to play Street Fighter 2 in the local cabbies. Now we can play online.
I use a XBOX360 controller and it works reasonably well. I have a Geforce 9500 graphics card and the game runs a little slow on default settings. Some online opponents are slower then me.The game default in a 'window' as well! never seen that before. You have to get used too the speed changes for online play, it's not a problem tho. I've just ordered the Madcatz SF4 pad looking forward to that.
It's great to play others from around the world with a game from my childhood. I love it. For the real experience, and to be able to pull of the supers and ultras you need the specialist Controller devices. You will be at a disadvantage online otherwise