Hi PDB,
I am also looking but can't find anything now even in YMCA & YWCA.
I just started to sew by self study. I suggest you go to this sites for basic tutorial:
Sewing Room
There are also projects that you can try in this site with free patterns for some clothes:
Home | burdastyle.com
Welcome to Modern Sewing Patterns
You can buy sewing essentials in SPOTLIGHT in MegaBox in Kowloon Bay. You can get there via Kowloon Bay MTR, there are free shuttle bus to MegaBox. SPOTLIGHT is in level 5.
SpotLight is also selling patterns from Vogue, Simplicity, McCalls, Burda, etc. But I always buy New Look because it is cheaper and so many variations per pattern set. I suggest you get the VIP card (free) first before purchasing because there are discounts.
I saw last July 1st that they are selling the Singer Featherlight sewing machine at HK$1,300+ and it is compact and looks nice.
I am looking for sewing clubs in HK but in vain. I've just started to sew since May only on weekends because I am working.
I hope I am of help to you.
Regards,
Asian Treasure