Hi there Skye!!
Welcome to Hop and the utterly wonderful spinning community here in Ireland

We have a small, but friendly group spread all over the island, with lots of great people in Dublin.
Dr Fandango, Fear-Tine and Cloudscape are in Dublin at the mo... Rononpotamus and Flip are in Cork and Offaly. Ado-p is in Limerick.
Faberge and I, and tainted, are in Belfast - and you'd be very welcome to come up to visit sometime.
There's also lots more people who don't post on here... but PM me your email address and I'll let you know about gatherings and suchlike.
As for the Belfast convention... it seems like it's happening in February now... but I'm sure more details will be posted as they become available.
The Belfast circus school runs adult training classes on a wednesday night (from 7-9pm). It costs £3 a night and they mainly focus on circusy-skills - like acrobatics, juggling, trapeze etc.
Not so much spinning, unfortunately... but that's what our gatherings are for

Take care
Clare x