Finally bit the bullet last week and ordered a flint and steel set. I had been putting it for ages due to not wanting to pay actual money for rocks. However, as it turns out, I should have got some ages ago.
To be honest, it was some what easier than I expected. I have been using both char cloth and Amadou (sp?) to catch the spark and jute to spread it into some birch bark.
While I was waiting for it to arrive, I've been watching some YT videos (thanks Ashley) for some technique pointers and I was very surprised at just how many sparks (some of which are quite bright) I can throw out. Cameras obviously can't pick them up in good lighting.
Also, blowing an ember into flame is very satisfying/addictive.
Chris