I've been after one for a while, and haven't managed to find one I really liked - until Monday. On the train down to London I saw someone carrying one that was exactly what I was after.
Turns out it was made by someone called Henry Tomkins in Exeter.
I've had a quick browse on his website and I've decided to go for this one -
It's on order - I'll let you what it's like when I get it.
PS: Thanks to my lovely wife Kerry for buying it for my birthday - 20th June by the way :)