Itsy -
I've always found that finding an area that has a natural windbreak helps, i.e, a depression in the ground, a rock outcrop , etc.
The traditional ring of stones doesnt really matter so much, if the stones are pourous and have a build up of moisture inside them, they are likely to shatter from the heat, sending shards of stone winging around.
You've hit the nail on the head thou, set up your timber - tinder, kindling and fuel ready to go before lighting. Rmember to have a stack of fuel not too close - you could use it like a reflector, to reflect heat back towards you, which also helps to dry out any moist timber.
I've mostly found that using a fire pit helps; de-turf a small area and set aside. Dig out small soil to form a pit. Bank up the soil to the prevailing wind and cover this with the turf (try not to scorch the turf thou!). Make it larger than the expected fire surround and allow enough air to circulate around the bottom so the fire isnt starved of oxygen.
REMEMBER the fire triangle - HEAT, FUEL, AIR. If any of these arent present, the fire will go out!
Hope it helps! Theres a fairly new book out which is quite good at explaining methods, whys and what fors:
http://www.amazon.co.uk/Complete-Book-F ... 32&sr=1-30
Failing that, most outdoor survival books have a chapter on firelighting - practice, practice, practice! Make a semi permenant fire pit in your back yard if poss and actually use - exactly like a BBQ!