In reply to veteye:
I agree with omitting Spiral Stairs. On the guidebook second pitch, but usual first pitch, the one that traverses left, there's a lot of space beneath your feet and as I recall the leader sat on the belay above can't seethe second when they get there; so not one for a complete beginner, I think.
Tryfan Fach is a good call and I think there are some routes on the Gribin Facet that might be good too. If that goes well then head for the routes on the east side of Tryfan.
T.