I'm in two clubs and hire the cheapest from both:
C150 for £58 per hour
PA38 for £85 per hour
Currently looking at buying a PFA permit type aircraft where running costs are typically £20 per hour (all in!) - provided you do your own maintenance
Cost of aircraft are incredible: start from ~ £3,000.
Also found a C150 rebuilding offer - but need to find a licenced engineer to oversee the work.