Thanks for all inputs. Tinstaafl - sounds nice! I think, however, I do not need the 'smartphone' as I am still in 'the dark ages' with a PDA/phone combo. I'll look at the 551.
The problem I have with the 6310i is that although the 'Nokia suite' does 'the bis' on the desktop, it appears to be a known problem that the BT function on this phone is 'immature' and I cannot get the PDA to connect to it, the connection dropping evey time I try to actually do something with it!! If anyone has a 'fix' then I'd be happy to stick with the 6310 as it is, as all say, functional and simple.