Well, now the the exercise ban is over, I had a 6.30 a.m. class at a local gym (as part of a trial week).
It's on a small, local trading estate and is run by two local lads in their early 20s. They were very welcoming and supportive to a fat old thing like me. The class only had three people this morning (apparently 6 is the most they're ever had for a morning class), which meant that the trainer had plenty of time to correct my form on various things.
I've got a tester 'weights and plates' class booked for Thursday. Then we're on holiday for two week... but I intend to sign up when we get back.