Thanks for that Forseti, you have hit on a really good point there and a concern I had in the back of my mind with regards to lenses, I have read in places that you have to be very careful what lenses you choose for the 5D.
I think another key point I have not made clear is that I am trying to ease my self into the side line of taking portraits and doing a couple of weddings (yes I have already done a wedding which turned out to introduce some very challenging circumastances) but ultimately I want to shoot what I want to shoot.
I have come to the conclusion that the 5D is quite clearly a superb camera however I don't think it offers for someone in my situation the flexability that I want which comes back to the crop factor and reach, if I am wondering around as I do and I see a fox (as I did once) then the more zoom I have the better.
If I had the money then it would be a 5D and a 7D but I don't so that has killed that train of thought
The information given by other forum members is valid and valuable but at one point I felt it was getting a little one sided i.e. get a 5D and it is good to see that Forsetti is happy with the 7D.
So I think 7D it is, if I find the sideline does get to the point where I need to quit my fulltime job then the plan will be to invest the sideline money in better gear and make the jump, so I think 5D is on the cards at some time but not just yet.
So the first accessory will be the battery grip + spare battery.
So I guess the question is what lens do I get with the 7D, apparently the 15-85 is cracking lens or should I be looking at the 24-70L (canon) or the sigma equivalent.