I recently gave 4 talks on sangha nights at the Cambridge Buddhist Centre. They were on Aspects of Going for Refuge, and you can find short descriptions of them and the audio recordings on the Free Buddhist Audio site. It’s been a while since I’ve given more formal talks like these, and although I missed being able to speak completely spontaneously, I enjoyed crafting them a little, including the stories and imagery about the Pacific Ocean that linked together the Dharma points.
I hope you find them helpful.