You can check http://www.yourbookshop.co.uk/ybsdetail.asp?item=214586 for a book called Digital Lighting & Rendering. I've been told that it's like a bible for 3D. There is also a nice tutorial on lighting in issue 20 of 3Dworld. If you don't have that issue yet you could check http://www.3dworldmag.com/backissues.asp to buy it. It's slod out at the moment, but it might be in re-print. I can also ask 3DWorld permission to scan the tutorial and send the scanned-in version to you. I don't know if they will allow that, but it's worth a try.

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