Let me get this out of the way first, I love this game and it will probably by my GOTY.
The brilliance of this game has always been the "golden rule" of tough, but fair. That is until I got to this part in Anor Londo.
Anor Londo is where you go to after Sen's Fortress (which you go to after ringing both bells).
You will come across a VERY narrow bridge with two black knights firing dragon arrows at you. The problem with this is a) you take a ton of damage if you don't block it, or b) if you do block it, the push back is so hard, you fall to your death.
After searching online and finding no real strategies, and dying about 35 times, I finally figured it out and figured I'd start this thread for others to share their tactics.
What I did was put on light armor. For me it was a full set of the Gold-Hemmed Black Robe set (since it's light, has good physical defense, 0% on poise sadly, but I could still move fast) and run up the middle to the right knight.
While on the edge, if he shoots arrows at you, rolling is the only way to dodge it. I then was able to get near him enough to lock on and melee him (if you get up there fast enough and close enough to him, the left knight won't be able to hit you).
From there I fought him, and he eventually fell off to his death and I could progress to another area with a bonfire.
I'll post a video of this later when it finishes rendering.
For the PC version, I just found this part a little easier, did they tweak something?
EDIT: Here is a video of how I beat the Orstein and Smough at the end of Anor Londo as well: