Thanks to you both - that's very helpful! I researched a bit more last night and realised the screen is smaller than I thought, didn't realise the dimension was measured diagonally across the screen and not across the width, so not sure that model would be right for what I need after all. Shame because I really liked the sound of that one!
I knew I should have dragged myself off the computer and into town to actually look at them...
There's my advice to anyone wanting to buy something new - do a bit of research so you know basic things to look out for, then go and look at potential models, then research that model on net for reviews! Lots of messing but might be worth it over time.
Cheers
Fishtank