I am after a trekking monopod that is light weight and cheap! Like under £40? I have a monfrotto 190XPROB tripod and pan and tilt head but just find the whole thing too heavy to carry when out walking, which is a shame as its a fine bit of kit. So, this year, for the Lakes, I am after a monopod I can use as a walking pole too. Ideally I would like one with a small adjustable head, rather that just the camera thread. Any suggestions?