Thanks all for the replies regarding the Bluetooth query. I thought I was OK but just wanted to check with the experts.
I do have wi-fi and my plan is to have the Nexus in the dining room with a small Bluetooth speaker as the ones I've heard give pretty good sound. The cloud storage sounds interesting - the choice now is between the 32g or cheaper 16g model. I suspect for the extra few pounds the 32 would be the one to go for. Once again, many thanks.