Hi folks,
I've been experimenting with SweetFX shaders in several of my games including SH3 with some interesting results. Uhnfortunately Kegyets' D3d9.dll configuration file doesn't support using a proxy dll so I cannot currently find a way to run both his widescreen dll and SweetFX dll at the same time but I left him a message a few days ago on his forum asking whether it would be possible if he could produce a version that supported a proxy dll and I'm hoping to hear back from him.
You can get the program here if it is of interest:
http://sweetfx.thelazy.net/
Cheers
Aces