Hi all.... I am in a bit of a pickle which I'm sure most of you have been in yourselves at one stage or another as to what lens I should go for. The choice is either the canon 50mm 1.4 or Sigma 50mm 1.4 EX.. I know the later is a wee bit more expensive and I've heard it has focus issues??? The 2nd choice is either the canon 70-200 f/4 IS or the 70-200 f/2.8 without IS.. I have a 20D Body and I mainly shoot everyday pictures, ie people, landscapes, still life, travel & weddings. I know there is a price difference between the 4 lenses but that is not an issue as its not a massive difference in price although the 70-200 f/2.8 IS is a bit out of my budget.. So I would like to get some advise from people who have had the pleasure of using these lenses and generally have a good idea for the lens of my requirements.. I've read reviews on all 4 lenses and they all seem very positive but they don't make the issue of choosing a lens easy for me.. Look forward to your comments..