Very very good choice but so expensive ! You can find tamron 70-200 2.8 (the first - http://www.dyxum.com/lenses/Tamron-SP-A ... ns381.html) for about 400 euros in second hand. Very good too (slowy AF), and short min. focus distance (95cm).
Here is some examples that I make with this lens :
But be carreful, all 70-200 2.8 are heavy lenses !