hi,
for fire effects check out www.magicgadgets.com
i used 2 of their 2k flicker dimmers for the camp fire scenes on
"van diemans land".
you can select flicker speed and intensity,
lowest light level to highest level and it randomly flickers
between the two.
with one running to two 200 watt globes covered with full cto,
and one running to another two 200 watt globes...hidden around
the campfire and cut from camera by blackwrap
i also had a readhead with full cto thru a 4 x 4 half white dif
as an ambient
it gives a very realistic fire light effect.
i also had a 1.2 hmi punched thru the background for a moonlight effect.
hope this makes sense.... most gaffers will have these flicker
dimmers so you could possibly hire a couple.
hope this helps.
cheers,
ian