Just to give you an idea about what date you can order up to at  Artists UK for a good chance of delivery by Christmas this year, these are the recommended last posting dates for Christmas for 2009 :

4th December for South and Central America, Caribbean, Afric, Middle and Far East, New Zealand, Asia and Australia.

10th December for Japan, USA, Canada and Eastern Europe.

11th December for Western Europe

21st December within the UK

Of course, if you just get on and order straight away then you’ll get your goodies with plenty of time to spare