In reply to FesteringSore:
Im not so familiar with whats on around Betws/Capel (but yep Tyn y Coed is a goodun). If you have transport then there is stuff further afield: Occasional Cinema at Bluesky (bangor) and Caban (Brynrefail),
http://www.occasionalcinema.org/schedulebluesky.htm
climbing wall DJ nights or climb n grub on Tuesdays at the Indy and at the Beacon respectively.
Science café and gigs at the Bluesky, gigs at the Vic (Menai Bridge). Bits and bobs at the Heights in Llanberis (art get togethers, used to be salsa I think), along with other stuff.
Oh, and everything on the Pontio programme, Bangor
http://www.pontio.co.uk/whats-on/index.php.en
Nearest multiplex cinema is Llandudno, and there are decent local pools/sports centres at Llandudno and Bangor (loads of smaller leisure centres, check on Gwynedd or Conwy website for details).
And obviously really good mountain and road biking, and walks and bouldering and climbing birding etc etc etc on PyB doorstep.