Thread created in 2004.
Bumped up in 2008
Bumped up again in 2010
Bumped up yet again in 2011
And, gets another bump in 2012.
Regarding your question, for £40, no chance! Royal Mial Doc Martens cost that much on eBay, but the area where your feet rests is rock hard, expect hard skin, blood clots and etc.
You need to have a budget of £75 up - for CAT or Rockport ones