DSC-N1 or DSC-N2 Camera?

After using a friends Sony DSC-N1 the other day, I was hooked on its 3" touch screen, but is it wrong to get it because of this? I've seen many reviews on it, and I'm pretty sure it's a decent camera, but if anyone can tell me otherwise, then please do.

I've now narrowed it down to either the Sony N1 or N2, but I just don't know whether the N2 is worth the £50ish extra. I've not actually found any comparison site between the two, but as far as I can tell, the N2 has 10.1MP and 17x digital zoom, whereas the N1 has 8.1MP and 6x digital zoom. Barring that, all other features are the same (I think). I've also heard that 6MP is generally enough on a camera, which both cameras easily fulfil, and that digital zoom isn't as necessary as optical.

Could I have peoples thoughts on whether the extra features on the N2 sufficiently out-weigh those on the N1. Also does anyone know if I've missed anything from my comparison between the two.

Thanks :).

EDIT - just remembered, the N2 has a better ISO capability for lighting conditions for something?

EDIT2 - Actually, need to get the N1 tonight as I've just seen a deal at the shops, so if there's anything I should know, tell me ASAP :p.