Thanks for all the info.  I've been browsing online at phones and did LiveChat a couple of times.  It SOUNDS like I could achieve what I'm after without a smart phone if I buy the Samsung Bright.  Has no data plan, seems to have as much as I need - and although I don't expect anything from the pre-paid I have now (which I hate ), I'll certainly try your idea.  Live Chat told me though that I have to speak to Customer Service in order to keep my existing phone number.  Don't see why - but I've spent about an hour on this, and where I am it's bedtime!  Thanks so much for your advice - which I'll pursue tomorrow morning!