I'm still building the home page here. For now here are the essential links.
A Load of Tips and diagrams on portrait shooting compiled from the best books
Poor man's IR filter (photoshop tutorial on simulating IR, posted by me on dpreview forum)
another post about channel shift color IR digital filtering
and here is a zip file with the photoshop tools/instructions to do simulated IR.
old camera stuff...
Noise comparison using filters on Oly E20
E20 versus D30 resolution/noise comparison