Finally I have 70-200.
I spent about 2 hours in a store trying different Sigma 70-200f/2.8 lenses. I do not know if this is normal, but all Sigma lenses I have tried returned different results. The overal result was not bad but just to feel the difference I tried EF 70-200 f/4L USM.
I realy wanted f2.8 but when I compared test results, decision was made almost immediately.
I have not tried the Canon EF 70-200 f/2.8 IS as I was afraid that I could not prevent myself from buy it and would spend more money that I wanted.
Hope I will not miss 2.8 a lot.
P.S. The price is comparably high, but the lens is bought in EU where lens prices are far higher.