In reply to bencarroll:
What do you mean by "beginner" walks? I see from your profile that you are leading VS which means that from a technical point of view you should cope easily on most of the walks in North Wales, including those involving scrambling in good weather.
Where you may become unstuck is on navigation if you haven't had much mountain experience, particularly in bad weather, in which case you need to stick to well defined paths to start with.
You shouild have no problem with the PYG track or Watkin Path (which is my favorite way up). The N Ridge of Tryfan is a great route and although a scramble, well within the capabilities of a VS leader.
Get a walking guide to the area.