Stevie,
Noticed this thread, thought I'd post as I'm local
(Newport) and was in a similar position to you a couple of years ago.
I notice some people are knocking Llandow, and its not my favourite, but it has its place as a first track to learn how a trackday works and as a good car tester
(since its usually a cheap day
- 80-100 quid).
If you're based in Brecon, its handily local as its nearest track.
Downsides are its just less than a mile long, is a bit featureless and one of the few features they do have
(90degree left after 1/4 mile straight, into a left, right, right, left complex) is a real car punisher as you hit the brakes from approx 100 to 30 within 100 yrds every lap.
But, like I say, its a great place for learning how a trackday works and because its small and tight, there's not going to be too much relative speeds between yourself and faster machinery.
Its my local track and I use it as a handy shakedown event for checking the car is working fine with a new upgrade before travelling further afield.
Pembrey only does about 1 car trackday per year, it's mostly about the bikes with them.
Still haven't mananged to get there yet, due to conflicting dates.
Anglesey is a very good technical circuit, recommended.
Although who knows what its like in the dry?!
Castle Combe is just the other side of Bristol and is my favourite local circuit.
It has everything you'd want in a track.
It does have a corner to be wary of however, Quarry, after a long fast section along pit straight and up a slight incline.
As long as you treat that corner with respect, you should be ok
(as long as its a proper trackday
- don't ever do an
"Action Day" that they run, too many cars on track and some truly awful driving going on).
The only downside with Combe is they are very tight on noise, 100db and no more.
My advice, have a go at Llandow, learn the ropes, take it easy, see how you get on, see if you like it, make sure your car performs well on a track
(vast difference to on road) then try something more interesting for a second go.
Hope that helps, and if you want someone to go with, get in touch
Damo