[kimgar]

excellent initiative stryker - one can never have enough info!

here's a few:

http://forums.facepunchstudios.com/s...ad.php?t=21286
http://www.rain.org/~msavard/hdri/Ar...singHDRIs.html
http://www.cgtechniques.com/tutorials.php
http://www.luminous-landscape.com/tutorials/hdr.shtml