Thanks for the replies everyone!
All very good information which I will remember!
Hmmm I think it would be a better idea going with a smaller python as my first 'permanent' reptile. Thanks again to those of you who suggested that.

I don't think I would have any problem with a larger python, in regards to the enclosure and feeding etc, but I could always buy another larger one after getting used to owning a smaller one! Thats always better than selling an unsuitable large python then 'down-grading', if you get what I mean.
Going for a smaller python, I really like the
Spotted pythons!

I have heard and read quite a lot about them and they sound like what I wanted, just smaller.
Sound good?