@Cathus, I can see where I was so wrong for calling myself pro when it was some thing I was getting paid on side. I can see what you mean, I do apologise if I was harsh.
@Oldboy, you are bang on money. I like what I have done but I always miss that crucial sharpness in my photos. My 70-300 VR lens does give out good sharpness but it not anyway near the pro sharpness. I am at the stage where I want to move on from being getting paid on side to doing this full time and for that I think I will need that 70-200 VR.
When I transfer photos on computer, I always have to add sharpness in PS (some thing I learned from one of the issue of your magazine) but I feel if I want to do this full time, I need shots to be sharp from camera rather then from Photoshop.
So I am off to Jessops tomorrow and will try out 70-200 VR and 50mm 1.4 (or is it 1.8?) or 24 - 70 2.8 VR (as suggested by cosmicma.
I hope that these lenses will help me cover both family portraits and weddings. Once again thanks for all your replies and sorry for not being clear from start
EDIT: one more thing I would like to add, is it even possible to go for tamron or sigma lenses as they are cheaper?