A few questions regarding hardware, more than software.

@ waterwingz,

A PIR activated camera is one of the projects sitting on my projects table.

In a hobbyist situation, where the financial resources are limited, one has to weigh up the total cost against the application. I agree with you that the LED parts list is expensive for a photographic application.

12 volt halogen lamps are probably the most cost effective lighting solution; the negative side is the power source. Determining where the total halogen cost versus the total LED cost equalise and a LED lighting solution becomes the most cost effective solution is the hard part.

I had a quick look at the links and a number of LED torch sites.

For photographic use, a number of the commercially manufactured LED torches on the market may provide a similar function to the Instructables project at a more cost effective price.

A few LED torch links that I looked at.

Note: For anyone living in Australia; it is cheaper to purchase the products in the USA and pay for the postage than purchase the product in Australia.

https://www.ledtorchshop.com.au/products.php?id=185&cat=50

http://www.mrgadget.com.au/gadget/2010/led-lenser-x21-brightest-led-torch-ever-produced/

http://www.4wdadventurers.com/showthread.php?858-Show-us-your-torches!

http://www.dereelight.com/dbsv2.htm

http://www.fenixlight.com/newping.asp

http://www.candlepowerforums.com/vb/forumdisplay.php?55-Flashlights&s=ba4b666a0fbf4026612a397b77dfb430

http://www.digitalreviews.net/reviews/miscellaneous/eagletac-jetbeam-best-brightest-led-torches-reviewed.html

http://www.squidoo.com/LED-flashlights

http://elektrolumens.com/

http://quality-items-flashlights.com/index.php/cat/c1345_Top-10-Editor-s-Choices.html/XTCsid/7fcf0aec007a4532fd0df4dcf87c4cc9