In reply to bricknall:
I was in a similar position to you a couple of years ago. I had been hill walking for about 8 months and had done most of the classic grade one scrambles in England and Wales. I wanted to have ago at the grade 3's. Routes like the Cneifion Arete in North Wales looked beyond my abilities and looked terrifying.
so I booked an introduction to climbing course at the local indoor wall. They showed me how to tie-in , belay and some basic climbing skills, but it did not teach the fundamental skills of placing gear to protect a pitch or setting up belays and rope work.
So I joined my local mountaineering club who took me out climbing. After having a go at seconding about 10 routes I decided to have a go at leading, while getting a rack together.
Climbing had taken over my life during the spring and summer months. I mostly go scrambling in the autumn/winter when the weather is not so good for climbing.
I found with the confidence gained rock climbing I could have a go at most grade 3 scrambles without a rope/gear, but would still recommend the use of protection if you are unsure of any difficult or exposed move on a route.
I would be a good idea to learn the basic skills before buying any kit beyond a harness and helmet
The best way to learn other than a course/instructor is the club route, Joining a climbing club has been a great experience , I can't recommend it enough.
Good luck.
Post edited at 20:12