After a lot of hunting I finally made my way down to Richard's on Thursday and came away with a Stonebridge G20 CM. I took my other acoustic, a Turner 72CE with me to compare, and Richard left me alone to play both, to see if my uneducated ears could tell the difference. I have to say that I could and consequently my credit card's been beaten up again and my one electric guitar is now on gumtree
So us left handers can find guitars with a bit of effort and help (thanks Richard).
Now my Turner spends it's time sat on a guitar stand in the spare bedroom (sorry - music room) but when I look on the Stonebridge website they recommend that guitars should be kept in a hard case. I also notice that on another forum there's a lot of agonising about temperature and humidity but I've took this to be just the work of our American cousins who live in extreme climates.
What's the collective wisdom on this? Is humidity an issue in the UK? Should all acoustic guitars be kept in hard cases when not being played?