Thank you all for your suggestions, they're all certainly very helpful (and sorry for the delay in acknowledging them - internet connection problems). I'm still none the wiser (but that's due to my own indecisiveness, not lack of info!) It does seem like a kobo would be a more practical option, but at the end of the day the reading experience is the most important thing. I'm going to try and find a proper bricks and mortar shop where I can try out the kobo and hopefully it will live up to expectations as it does seem like a kobo plus old kindle would be a better combination/solution than old kindle and new kindle! Thank you all agin for your insights.
